├── .github └── FUNDING.yml ├── .gitignore ├── .gitmodules ├── CONTRIBUTING.md ├── COPYING ├── README.md ├── automatic.sh ├── build.sh ├── misc ├── dissect.sh └── extract-after-compile.py ├── patches ├── 250 │ ├── config │ ├── patch_bootloader.json │ ├── patch_kernel.json │ ├── patch_userland.json │ └── readme.md ├── 273 │ ├── build.sh │ ├── config │ ├── patch_bootloader.json │ ├── patch_kernel.json │ ├── patch_userland.json │ ├── patches.md │ └── readme.md ├── 277 │ ├── asm │ │ ├── fn_handler.S │ │ └── stdout.S │ ├── config │ ├── patch_bootloader.json │ ├── patch_kernel.json │ ├── patch_userland.json │ ├── patches.md │ └── readme.md ├── 278 │ ├── config │ ├── patch_bootloader.json │ ├── patch_kernel.json │ ├── patch_userland.json │ ├── patches.md │ └── readme.md ├── 279 │ ├── config │ ├── patch_bootloader.json │ ├── patch_kernel.json │ ├── patch_userland.json │ ├── patches.md │ └── readme.md ├── 277-memdump │ ├── asm │ │ └── fn_handler.S │ ├── config │ ├── patch_bootloader.json │ ├── patch_kernel.json │ ├── patch_userland.json │ └── readme.md ├── 277-tools │ ├── asm │ │ ├── fan_handle.S │ │ ├── fan_log.S │ │ └── tools.S │ ├── config │ ├── patch_bootloader.json │ ├── patch_kernel.json │ ├── patch_userland.json │ └── readme.md └── latest ├── requirements.txt ├── research ├── 2022-02-15-initial-findings.md ├── 2022-02-16-reproducing-273.md ├── 2022-02-17-docs.md ├── 2022-02-18-building-279.md ├── 2022-02-19-onto-277.md ├── img │ ├── 273-277-vspchannel-comparison.png │ ├── conapp-closing-connection.png │ ├── conapp-get-current-context.png │ ├── health-ipc-call.png │ ├── health-jump-table.png │ ├── health_fan_function.png │ ├── keypatch-function-entrypoints.png │ ├── new-function-entrypoints.png │ ├── patch-for-273-identical.png │ ├── unkn-libc-call.png │ └── vspchannel-logging-ipc.png └── readme.md ├── scripts ├── aterfax-silence-dl380pG8-screen.sh ├── cf-dynamic-fans.sh ├── djaenk-quiet-dl380pG8.sh ├── dl360gen9-silent.sh ├── ja-silence-dl20G9.sh ├── kg-silence-dl380eG8.sh ├── kg-silence-dl380pG8.sh ├── quietFansDL380G9.sh ├── readme.md └── tty13-fanctrl.sh └── util ├── asm ├── fan_research.S └── test.S ├── common.py ├── gcc ├── .gitignore ├── Makefile ├── ilo.h ├── ilo_277.h ├── main.c └── main.lds ├── patch.py └── repl.py /.github/FUNDING.yml: -------------------------------------------------------------------------------- 1 | github: kendallgoto 2 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | /venv/ 2 | /build/ 3 | /binaries/ 4 | *.pyc 5 | -------------------------------------------------------------------------------- /.gitmodules: -------------------------------------------------------------------------------- 1 | [submodule "ilo4_toolbox"] 2 | path = ilo4_toolbox 3 | url = https://github.com/airbus-seclab/ilo4_toolbox.git 4 | ignore = dirty 5 | -------------------------------------------------------------------------------- /CONTRIBUTING.md: -------------------------------------------------------------------------------- 1 | There aren't really any hard rules here! If you have some additional research, please make a PR / reach out to me and I'd love to chat about it. 2 | 3 | If you'd like to chat about my research, need help getting something setup, etc., please reach out and I'm happy to help. 4 | 5 | For the sake of maintaining a dependable `main` and due to the vulnerability of generating iLO patches, please fully document any patches in PRs so that I can adaquetly vet & test them. Submitted code should never include HP intellectual property -- i.e., no binaries! 6 | 7 | Please submit PRs against the `dev` branch. 8 | 9 | Kendall Goto (k@kgo.to) 10 | /u/iamkgoto 11 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # ilo4_unlock (Silence of the Fans) 2 | A toolkit for patching HPE's iLO 4 firmware with access to previously inaccessible utilities. 3 | 4 | Specifically, firmware is patched with the ability to access new commands via SSH, relating to system health (`h`), fan tuning (`fan`), on-board temperature sensors (`ocsd`), and option chip health systems (`ocbb`). Designed for [/r/homelab](https://reddit.com/r/homelab) users, this modified firmware provides administrators with the ability to adjust HP's aggressive fan curves on iLO4-equipped servers (such as DL380p / DL380p Gen 8 & Gen 9). Another common use case is to prevent server fans from maxing out when a non-HPE certified PCI-e card is used in a system. 5 | 6 | **Please note: At this time, v2.77 is the most recent iLO that has a working patch. After this version, HP has removed many of the control utilities that make patching v2.78 and v2.79 useful. While this may change in the future, bringing useful tools to v2.79 (the current latest) will take an extremely large amount of work. The patching works fine here, it just does not provide access to useful functions** 7 | 8 | ## Legal 9 | There is risk for potential damage to your system when utilizing this code. If an error occurs during flashing, or you end up flashing corrupted firmware, the iLO will not be able to recover itself. The iLO's flash chip cannot be programmed on-board, and must be fully desoldered and reprogrammed to recover the functionality. Additionally, utilizing the included new features may cause your server to overheat or otherwise suffer damage. Do not proceed with installing this firmware if you don't know what you're doing. **You have been warned**. There is no warranty for this code nor will I be responsible for any damage you cause. I have personally only tested this firmware on my DL380p Gen8, and DL380e Gen8. 10 | 11 | This repo does not contain any iLO 4 binaries; unmodified or patched as they are owned by HP. Websites have, in the past, been served with cease and desist orders from HP for hosting iLO binaries. For security purposes, I encourage you to follow the steps listed to build the patched version of the iLO yourself, while verifying the contents of the patched code. 12 | 13 | ## Getting Started 14 | Python 2.7 is required. I built everything on CentOS 8; Other OS/environments might have different requirements. If your setup takes extra effort, please let me know and I'll document it. 15 | 16 | _pro tip! if you're doing this all on a Live CD to flash, make sure you disable iLO security first, or you'll have to restart. See Flashing Firmware for more info_ 17 | 18 | Here is my setup for my Ubuntu 22.04 Live CD (as of 2024-12-12): 19 | ```bash 20 | sudo apt-add-repository universe 21 | sudo apt update 22 | sudo apt-get install python2-minimal git curl 23 | curl https://bootstrap.pypa.io/pip/2.7/get-pip.py --output get-pip.py && sudo python2 get-pip.py 24 | python2 -m pip install virtualenv 25 | git clone --recurse-submodules https://github.com/kendallgoto/ilo4_unlock.git 26 | cd ilo4_unlock 27 | python2 -m virtualenv venv 28 | source venv/bin/activate 29 | pip install -r requirements.txt 30 | ``` 31 | 32 | ## Building Firmware 33 | ``` bash 34 | ./build.sh init # download necessary HPE binaries 35 | #./build.sh [patch-name] -- see patches/ folder for more info on each patch! 36 | ./build.sh 277 # generate iLO v2.77 patched firmware 37 | # The build setup creates a build/ folder where all the artifacts are stored. The final firmware location will be printed at the end of the script, if no errors are produced. 38 | ``` 39 | ## Flashing Firmware 40 | The resulting firmware is located in the `build` directory, under the firmware's name (e.g. `build/ilo4_273.bin.patched` for v2.73 builds). I suggest the following steps to flash the firmware, as you cannot do it from the web interface: 41 | 1. Copy the resulting firmware to a USB key, along with the flasher files (`binaries/flash_ilo4` & `binaries/CP027911.xml`) 42 | 2. Remove power from your server, and enable iLO4 Security Override (for me, this was flipping the first DIP switch on the board). 43 | 3. Boot your server from a baremetal Linux install -- a Ubuntu LiveCD works well. 44 | 4. Ensure any HP modules are unloaded (`sudo modprobe -r hpilo`) 45 | 5. Plug in the USB key, rename the firmware to `ilo4_250.bin`, then run `sudo ./flash_ilo4 --direct` to patch your server. 46 | 6. Resist the urge to unplug the system and break everything while flashing. **It will be loud**. It took 2 minutes to erase, and 1 minute to flash. 47 | 7. After patching, shut down and remove power from the server to disable the iLO4 security override. 48 | 49 | Following the Getting Started steps, here's what I did after building: 50 | ```bash 51 | sudo modprobe -r hpilo 52 | mkdir -p flash 53 | cp binaries/flash_ilo4 binaries/CP027911.xml flash/ 54 | cp build/ilo4_277.bin.patched flash/ilo4_250.bin 55 | cd flash 56 | sudo ./flash_ilo4 --direct 57 | # wait until the fans spin down ... 58 | sudo shutdown now # remove power and disable the security override after shutting down! 59 | ``` 60 | 61 | ## Use 62 | ``` 63 | FAN: 64 | Usage: 65 | 66 | info [t|h|a|g|p] 67 | - display information about the fan controller 68 | or individual information. 69 | g - configure the 'global' section of the fan controller 70 | g smsc|start|stop|status 71 | start - start the iLO fan controller 72 | stop - stop the iLO fan controller 73 | smsc - configure the SMSC for manual control 74 | ro|rw|nc - set the RO, RW, NC (no_commit) options 75 | (blank) - shows current status 76 | t - configure the 'temperature' section of the fan controller 77 | t N on|off|adj|hyst|caut|crit|access|opts|set|unset 78 | on - enable temperature sensor 79 | off - disable temperature sensor 80 | adj - set ADJUSTMENT/OFFSET 81 | set/unset - set or clear a fixed simulated temp (also 'fan t set/unset' for show/clear all) 82 | hyst - set hysteresis for sensor 83 | caut - set CAUTION threshold 84 | crit - set CRITICAL threshold 85 | access - set ACCESS method for sensor (should be followed by 5 BYTES) 86 | opts - set the OPTION field 87 | h - configure the 'tacHometers' section of the fan controller 88 | h N on|off|min|hyst|access 89 | on - enable sensor N 90 | off - disable sensor N 91 | min - set MINIMUM tach threshold 92 | hyst - set hysteresis 93 | grp ocsd|show - show grouping parameters with OCSD impacts 94 | p - configure the PWM configuration 95 | p N on|off|min|max|hyst|blow|pctramp|zero|feton|bon|boff|status|lock X|unlock|tickler|fix|fet|access 96 | on - enable (toggle) specified PWM 97 | off - disable (toggle) specified PWM 98 | min - set MINIMUM speed 99 | max - set MAXIMUM speed 100 | blow - set BLOWOUT speed 101 | pct - set the PERCETNAGE blowout bits 102 | ramp - set the RAMP register 103 | zero - set the force ZEROP bit on/off 104 | feton - set the FET 'for off' bit on/off 105 | bon - set BLOWOUT on 106 | boff - set BLOWOUT off 107 | status - set STATUS register 108 | lock - set LOCK speed and set LOCK bit 109 | unlock - clear the LOCK bit 110 | tickler - set TICKLER bit on/off - tickles fans even if FAN is stopped 111 | pid - configure the PID algorithm 112 | pid N p|i|d|sp|imin|imax|lo|hi - configure PID paramaters 113 | - * Use correct FORMAT for numbers! 114 | p - set the PROPORTIONAL gain 115 | i - set the INTEGRAL gain 116 | d - set the DERIVATIVE gain 117 | sp - set SETPOINT 118 | imin - set I windup MIN value 119 | imax - set I windup MAX value 120 | lo - set output LOW limit 121 | hi - set output HIGH lmit 122 | MISC 123 | rate X - Change rate to X ms polling (default 3000) 124 | ramp - Force a RAMP condition 125 | dump - Dump all the fan registers in raw HEX format 126 | hyst h v1..vN - Perform a test hysteresis with supplied numbers 127 | desc <0>..<15> - try to decode then execute raw descriptor bytes (5 or 16) 128 | actn <0>..<15> - try to decode then execute raw action bytes (5 or 16) 129 | debug trace|t X|h X|a X|g X|p X|off|on 130 | - Set the fine control values for the fan FYI level 131 | DIMM - DIMM-specific subcommand handler 132 | DRIVE - Drive temperature subcommand handler 133 | MB - Memory buffer subcommand handler 134 | PECI - PECI subcommand handler 135 | AWAITING DOCUMENTAION 136 | ms - multi-segment info 137 | a N - algorithms - set parameters for multi-segment. 138 | w - weighting 139 | ``` 140 | See the [scripts/](scripts/) folder as well. 141 | For info about the lesser used functions, please refer to the relevant reading. I don't use them, so I haven't documented them. 142 | 143 | ## Getting Involved 144 | Want to get involved? Check out [here](CONTRIBUTING.md)! 145 | 146 | ## Credits 147 | - Thanks to the work of [Airbus Security Lab](https://github.com/airbus-seclab/ilo4_toolbox); whose previous work exploring iLO 4 & 5 was instrumental in allowing the development of modified iLO firmware. 148 | - And to [/u/phoenixdev](https://www.reddit.com/user/phoenixdev), whose original work on iLO4 v2.60 and v2.73 allowed for fans to be controlled in the first place. 149 | This repository utilizes modified code from the iLO4 Toolbox. The toolkit invokes code directly from the iLO4 Toolbox, as well as includes modified versions of Airbus Security Lab's original patching code to perform the necessary patches. It also utilizes code originally written by [/u/phoenixdev](https://www.reddit.com/user/phoenixdev) that was reverse-engineered from their patched v2.73 iLO4 firmware. 150 | 151 | The full documentation on how this code base was derived is fully detailed [in the research/ folder](research/readme.md). 152 | 153 | ## Relevant Reading & Prior Work 154 | [2019-10-02 /u/phoenixdev's preliminary writeup](https://www.reddit.com/r/homelab/comments/dc7dbc/silence_of_the_fans_preliminary_success_with/) 155 | [2019-10-15 /u/phoenixdev's first release for v2.60](https://www.reddit.com/r/homelab/comments/di3vrk/silence_of_the_fans_controlling_hp_server_fans/) 156 | [2020-06-30 /u/phoenixdev's second release for v2.73](https://www.reddit.com/r/homelab/comments/di3vrk/silence_of_the_fans_controlling_hp_server_fans/) 157 | [Airbus Security Lab's iLO4 Toolbox](https://github.com/airbus-seclab/ilo4_toolbox) 158 | [Airbus Security Lab's "Subverting your server through its BMC: the HPE iLO4 case" (written version)](https://airbus-seclab.github.io/ilo/SSTIC2018-Article-subverting_your_server_through_its_bmc_the_hpe_ilo4_case-gazet_perigaud_czarny.pdf) 159 | [Airbus Security Lab's "Subverting your server through its BMC: the HPE iLO4 case" (presented version)](https://airbus-seclab.github.io/ilo/RECONBRX2018-Slides-Subverting_your_server_through_its_BMC_the_HPE_iLO4_case-perigaud-gazet-czarny.pdf) 160 | -------------------------------------------------------------------------------- /automatic.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | # 3 | # This file is part of ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 4 | # Copyright (c) 2022 Kendall Goto. 5 | # 6 | # This program is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, version 3. 9 | # 10 | # This program is distributed in the hope that it will be useful, but 11 | # WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | # General Public License for more details. 14 | # 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program. If not, see . 17 | 18 | # NOTE: This code isn't necessarily safe! It's my personal notes for everything That 19 | # I had to do to patch my server from a Ubuntu 21.10 Live CD on 2/20/2022. 20 | # On a server, you can run this with 21 | # wget https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/main/automatic.sh && chmod +x automatic.sh && ./automatic.sh 22 | set -e 23 | sudo apt-add-repository -y universe 24 | sudo apt update 25 | sudo apt-get install -y python2-minimal git curl 26 | curl https://bootstrap.pypa.io/pip/2.7/get-pip.py --output get-pip.py && sudo python2 get-pip.py 27 | python2 -m pip install virtualenv 28 | git clone --recurse-submodules https://github.com/kendallgoto/ilo4_unlock.git 29 | cd ilo4_unlock 30 | python2 -m virtualenv venv 31 | source venv/bin/activate 32 | pip install -r requirements.txt 33 | ./build.sh init 34 | ./build.sh latest 35 | 36 | sudo modprobe -r hpilo 37 | mkdir -p flash 38 | cp binaries/flash_ilo4 binaries/CP027911.xml flash/ 39 | cp build/ilo4_*.bin.patched flash/ilo4_250.bin 40 | 41 | cd flash 42 | cwd=$(pwd) 43 | 44 | echo "Ready to flash! Run sudo ./flash_ilo4 --direct inside $CWD" 45 | -------------------------------------------------------------------------------- /build.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | # 3 | # This file is part of ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 4 | # Copyright (c) 2022 Kendall Goto. 5 | # 6 | # This program is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, version 3. 9 | # 10 | # This program is distributed in the hope that it will be useful, but 11 | # WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | # General Public License for more details. 14 | # 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program. If not, see . 17 | exit_help() { 18 | echo "usage: \"$0 \"" 19 | echo " \"$0 init\" to download binaries on a new install" 20 | echo " \"$0 latest\" to automatically build the latest target" 21 | echo " \"$0 [patch-name]\" to directly build a patch from patches/" 22 | exit 1 23 | } 24 | check_hash() { 25 | HASH=`sha1sum "$1" | cut -d' ' -f1` 26 | if [ "$HASH" != "$2" ]; then 27 | echo "Binary hash mismatch ... please init again." 28 | exit 1 29 | fi 30 | echo "Hash validated for $1" 31 | } 32 | build_process() { 33 | ROOT_DIR=`git rev-parse --show-toplevel` 34 | SCRIPT_DIR="$ROOT_DIR/ilo4_toolbox/scripts/iLO4" 35 | UTIL_DIR="$ROOT_DIR/util" 36 | BUILD_LOC=$(realpath "$3") 37 | DIR=`dirname $1` 38 | FIRMWARE="$2" 39 | DEST="$BUILD_LOC/$(basename "$FIRMWARE").patched" 40 | 41 | rm -rf "$BUILD_LOC" 42 | 43 | echo "Extracting with iLO4 Toolbox ..." 44 | python "$SCRIPT_DIR/ilo4_extract.py" "$FIRMWARE" "$BUILD_LOC" &> /dev/null 45 | echo "Patching bootloader ..." 46 | python "$UTIL_DIR/patch.py" "$BUILD_LOC/bootloader.bin" "$DIR/patch_bootloader.json" "$BUILD_LOC/bootloader.bin.patched" 47 | echo "Patching kernel ..." 48 | python "$UTIL_DIR/patch.py" "$BUILD_LOC/kernel_main.bin" "$DIR/patch_kernel.json" "$BUILD_LOC/kernel_main.bin.patched" 49 | echo "Patching userland ..." 50 | python "$UTIL_DIR/patch.py" "$BUILD_LOC/elf.bin" "$DIR/patch_userland.json" "$BUILD_LOC/elf.bin.patched" 51 | 52 | echo "Repacking with iLO4 Toolbox ..." 53 | python "$SCRIPT_DIR/ilo4_repack.py" "$FIRMWARE" "$BUILD_LOC/firmware.map" "$BUILD_LOC/elf.bin.patched" "$BUILD_LOC/kernel_main.bin.patched" "$BUILD_LOC/bootloader.bin.patched" &> /dev/null 54 | mv "$FIRMWARE.backdoored.toflash" "$DEST" 55 | 56 | echo "Final firmware at $3/$(basename "$DEST")" 57 | } 58 | run_patch() { 59 | PATCH_PATH="patches/$1" 60 | if [ -f "$PATCH_PATH/config" ]; then 61 | source "$PATCH_PATH/config" 62 | BIN_PATH="binaries/$BINARY_NAME" 63 | check_hash "$BIN_PATH" "$BINARY_SHA1" 64 | build_process "$PATCH_PATH/config" "$BIN_PATH" "build" 65 | #./$PATCH_PATH/build.sh "$BIN_PATH" "build" 66 | check_hash "build/$BINARY_NAME.patched" "$RESULT_SHA1" 67 | exit 0 68 | else 69 | exit_help 70 | fi 71 | } 72 | do_init() { 73 | echo "Downloading binaries ..." 74 | rm -rf binaries/ 75 | mkdir -p binaries/ 76 | for d in patches/* ; do 77 | if [ -d "$d" ]; then 78 | if [ -f "$d/config" ]; then 79 | source "$d/config" 80 | if [ -f "./binaries/$BINARY_NAME" ]; then 81 | echo "Binary $BINARY_NAME already downloaded ..." 82 | else 83 | echo "Downloading $BINARY_URL as $BINARY_NAME" 84 | wget -O temp.csexe -q $BINARY_URL 85 | sh temp.csexe --unpack=archivetemp > /dev/null 86 | cp archivetemp/ilo4_*.bin "./binaries/$BINARY_NAME" 87 | if [ "$NAME" = "250" ]; then 88 | cp archivetemp/flash_ilo4 archivetemp/CP027911.xml ./binaries/ 89 | fi 90 | rm -rf archivetemp 91 | rm temp.csexe 92 | check_hash "binaries/$BINARY_NAME" "$BINARY_SHA1" 93 | fi 94 | fi 95 | fi 96 | done 97 | echo "Downloaded binaries to to ./binaries" 98 | ls -al binaries 99 | exit 0 100 | } 101 | get_latest() { 102 | latest_patch=`cat ./patches/latest` 103 | run_patch $latest_patch 104 | } 105 | 106 | # Runtime 107 | if [ $# -ne 1 ]; then 108 | exit_help 109 | fi 110 | set -e 111 | 112 | 113 | cd "${0%/*}" # cd to script location 114 | 115 | case $1 in 116 | init) 117 | do_init 118 | ;; 119 | "latest") 120 | get_latest 121 | ;; 122 | *) 123 | run_patch $1 124 | ;; 125 | esac 126 | -------------------------------------------------------------------------------- /misc/dissect.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | # 3 | # This file is part of the ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 4 | # Copyright (c) 2022 Kendall Goto. 5 | # 6 | # This program is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, version 3. 9 | # 10 | # This program is distributed in the hope that it will be useful, but 11 | # WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | # General Public License for more details. 14 | # 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program. If not, see . 17 | set -e 18 | 19 | cd "${0%/*}" # cd to script location 20 | cd ../ 21 | cp build/elf.bin.patched ilo4_toolbox/scripts/iLO4/elf.bin 22 | cd ilo4_toolbox/scripts/iLO4/ 23 | rm -rf mods loaders scripts 24 | ruby dissection.rb elf.bin 25 | zip -r dissect.zip mods loaders scripts 26 | cd ../../../ 27 | cp ilo4_toolbox/scripts/iLO4/dissect.zip build/dissect.zip 28 | -------------------------------------------------------------------------------- /misc/extract-after-compile.py: -------------------------------------------------------------------------------- 1 | # Derived from https://github.com/airbus-seclab/ilo4_toolbox 2 | 3 | # This script works like the default ilo4_extract script, but 4 | # it's been retooled to extract a working elf.bin from a final patched 5 | # binary generated by ilo4_toolbox -- I used it to extract the final 6 | # 273.bin.fancommands binary into something I could diff in Ida 7 | 8 | #!/usr/bin/python 9 | 10 | import os 11 | import sys 12 | import json 13 | from ilo4 import * 14 | from struct import unpack_from 15 | from collections import OrderedDict 16 | 17 | 18 | BEGIN_SIGN = "--==--\n" 19 | END_SIGN = "--==--\n" 20 | BEGIN_CERT = "-----BEGIN CERTIFICATE-----\n" 21 | END_CERT = "-----END CERTIFICATE-----\n" 22 | 23 | IMG_LIST = ["elf", "kernel_main", "kernel_recovery"] 24 | 25 | HPIMAGE_HDR_SIZE = 0x4A0 26 | BOOTLOADER_HDR_SIZE = 0x440 27 | IMG_HDR_SIZE = 0x440 28 | 29 | 30 | if len(sys.argv) != 3: 31 | print "usage: %s " 32 | sys.exit(1) 33 | 34 | filename = sys.argv[1] 35 | outdir = sys.argv[2] 36 | 37 | if not os.path.exists(outdir): 38 | os.makedirs(outdir) 39 | 40 | with open(filename, "rb") as fff: 41 | data = fff.read() 42 | 43 | offsets_map = OrderedDict() 44 | global_offset = 0 45 | 46 | # data starts at 47 | # 01 00 00 00 29 32 EC AE CC 69 D8 43 BD 0E 61 DC 34 06 F7 1B 00 00 00 00 48 | # have to add this to top of function 49 | targetListsize = unpack_from("= 0: 139 | print hexdump(data[:400]) 140 | # skip padding 141 | if data[:off] != "\xff" * off: 142 | with open(outdir + "/failed_assert.bin", "wb") as fff: 143 | fff.write(data) 144 | 145 | assert(data[:off] == "\xff" * off) 146 | data = data[off:] 147 | global_offset += off 148 | 149 | # extract header 150 | ilo_header = data[:IMG_HDR_SIZE] 151 | data = data[IMG_HDR_SIZE:] 152 | 153 | with open(outdir + "/%s.hdr" % IMG_LIST[ilo_num], "wb") as fff: 154 | fff.write(ilo_header) 155 | 156 | print "[+] iLO Header %d: %s" % (ilo_num, ilo_header[:0x1a]) 157 | 158 | img_header = ImgHeader.from_buffer_copy(ilo_header) 159 | img_header.dump() 160 | 161 | with open(outdir + "/%s.sig" % IMG_LIST[ilo_num], "wb") as fff: 162 | fff.write(img_header.to_str(img_header.signature)) 163 | 164 | payload_size = img_header.raw_size - IMG_HDR_SIZE 165 | 166 | data1 = data[:payload_size] 167 | data = data[payload_size:] 168 | 169 | # insert img into offsets map 170 | offsets_map["%s_HDR" % IMG_LIST[ilo_num].upper()] = global_offset 171 | global_offset += IMG_HDR_SIZE 172 | offsets_map["%s" % IMG_LIST[ilo_num].upper()] = global_offset 173 | global_offset += payload_size 174 | 175 | psz, = unpack_from(" %20s at 0x%08x" % (part, offset) 210 | 211 | with open(outdir + "/firmware.map", "wb") as fff: 212 | fff.write(json.dumps(offsets_map, sort_keys=True, indent=4, separators=(',', ': '))) 213 | 214 | print "\n> done\n" 215 | -------------------------------------------------------------------------------- /patches/250/config: -------------------------------------------------------------------------------- 1 | NAME="250" 2 | BINARY_NAME="ilo4_250.bin" 3 | BINARY_URL="https://downloads.hpe.com/pub/softlib2/software1/sc-linux-fw-ilo/p192122427/v112485/CP027911.scexe" 4 | BINARY_SHA1="924638e17d421c1890139a8aae17287642a5362e" 5 | RESULT_SHA1="1bb4e0f65f88dae20f497aaa39d6bbbde2509332" 6 | -------------------------------------------------------------------------------- /patches/250/patch_bootloader.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BNE XX -> MOV R0, #0", 4 | "offset": "0x38BC", 5 | "size": 4, 6 | "prev_data": "4000001A", 7 | "patch": "0000A0E1" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/250/patch_kernel.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BEQ XX -> B XX", 4 | "offset": "0x1FB1C", 5 | "size": 4, 6 | "prev_data": "0400000A", 7 | "patch": "040000EA" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/250/patch_userland.json: -------------------------------------------------------------------------------- 1 | [] 2 | -------------------------------------------------------------------------------- /patches/250/readme.md: -------------------------------------------------------------------------------- 1 | # iLO 2.50 Patch 2 | This patch is copied verbatim from iLO4 Toolbox. It does not provide any fan control functionality, but merely provides the base framework needed to patch firmware binaries with signature validation skips. 3 | 4 | This patch isn't intended for use, nor has it been tested. It's merely provided as the baseline of work produced by Airbus Security Lab needed to continue this work. 5 | -------------------------------------------------------------------------------- /patches/273/build.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | # 3 | # This file is part of the ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 4 | # Copyright (c) 2022 Kendall Goto. 5 | # 6 | # This program is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, version 3. 9 | # 10 | # This program is distributed in the hope that it will be useful, but 11 | # WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | # General Public License for more details. 14 | # 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program. If not, see . 17 | set -e 18 | if [ $# -ne 2 ]; then 19 | echo "usage: $0 " 20 | exit 1 21 | fi 22 | 23 | ROOT_DIR=`git rev-parse --show-toplevel` 24 | SCRIPT_DIR="$ROOT_DIR/ilo4_toolbox/scripts/iLO4" 25 | UTIL_DIR="$ROOT_DIR/util" 26 | BUILD_LOC=$(realpath "$2") 27 | DIR=`dirname $0` 28 | FIRMWARE="$1" 29 | DEST="$BUILD_LOC/$(basename "$FIRMWARE").patched" 30 | 31 | rm -rf "$BUILD_LOC" 32 | 33 | echo "Starting iLO4 Toolbox Extraction ..." 34 | python "$SCRIPT_DIR/ilo4_extract.py" "$FIRMWARE" "$BUILD_LOC" 35 | echo "Patching bootloader ..." 36 | python "$UTIL_DIR/patch.py" "$BUILD_LOC/bootloader.bin" "$DIR/patch_bootloader.json" "$BUILD_LOC/bootloader.bin.patched" 37 | echo "Patching kernel ..." 38 | python "$UTIL_DIR/patch.py" "$BUILD_LOC/kernel_main.bin" "$DIR/patch_kernel.json" "$BUILD_LOC/kernel_main.bin.patched" 39 | echo "Patching userland ..." 40 | python "$UTIL_DIR/patch.py" "$BUILD_LOC/elf.bin" "$DIR/patch_userland.json" "$BUILD_LOC/elf.bin.patched" 41 | 42 | echo "Repacking with iLO4 Toolbox ..." 43 | python "$SCRIPT_DIR/ilo4_repack.py" "$FIRMWARE" "$BUILD_LOC/firmware.map" "$BUILD_LOC/elf.bin.patched" "$BUILD_LOC/kernel_main.bin.patched" "$BUILD_LOC/bootloader.bin.patched" 44 | mv "$FIRMWARE.backdoored.toflash" "$DEST" 45 | 46 | echo "Final firmware at $2/$(basename "$DEST")" 47 | -------------------------------------------------------------------------------- /patches/273/config: -------------------------------------------------------------------------------- 1 | NAME="273" 2 | BINARY_NAME="ilo4_273.bin" 3 | BINARY_URL="https://downloads.hpe.com/pub/softlib2/software1/sc-linux-fw-ilo/p192122427/v176128/CP042663.scexe" 4 | BINARY_SHA1="8303c236c3417814afa0ed4b63e2d1ac48e3e881" 5 | RESULT_SHA1="06e572e9de5926208bfc52998abdc44410672a79" 6 | -------------------------------------------------------------------------------- /patches/273/patch_bootloader.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BNE XX -> MOV R0, #0", 4 | "offset": "0x38BC", 5 | "size": 4, 6 | "prev_data": "4000001A", 7 | "patch": "0000A0E1" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/273/patch_kernel.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BEQ XX -> B XX", 4 | "offset": "0x1FB48", 5 | "size": 4, 6 | "prev_data": "0400000A", 7 | "patch": "040000EA" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/273/patch_userland.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Bypass signature check : BEQ XX -> B XX", 4 | "offset": "0x96C2CC", 5 | "size": 4, 6 | "prev_data": "1D 00 00 0A", 7 | "patch": "1D 00 00 EA" 8 | }, 9 | { 10 | "remark": "Rename `quit` to `OCBB`", 11 | "offset": "0xB7D2B4", 12 | "size": 4, 13 | "prev_data": "71 75 69 74", 14 | "patch": "4F 43 42 42" 15 | }, 16 | { 17 | "remark": "Rename `VSPR` to `h`", 18 | "offset": "0xB7D3C8", 19 | "size": 5, 20 | "prev_data": "56 53 50 5C 52", 21 | "patch": "48 00 00 00 00" 22 | }, 23 | { 24 | "remark": "Rename `DEBUG` to `OCSD`", 25 | "offset": "0xB7D3E0", 26 | "size": 5, 27 | "prev_data": "44 45 42 55 47", 28 | "patch": "4F 43 53 44 00" 29 | }, 30 | { 31 | "remark": "Rename `NULL_CMD` to `FAN`", 32 | "offset": "0xB7D43C", 33 | "size": 8, 34 | "prev_data": "4E 55 4C 4C 5F 43 4D 44", 35 | "patch": "46 41 4E 00 00 00 00 00" 36 | }, 37 | { 38 | "remark": "Add function handler for new functions", 39 | "offset": "0xAFA954", 40 | "size": 116, 41 | "prev_data": "0D C0 A0 E1 20 D8 2D E9 04 B0 4C E2 8B 13 00 EB 9A 1F 8F E2 00 50 A0 E1 FE 96 00 EB 54 12 9F E5 04 00 95 E5 01 00 50 E1 09 00 00 1A 02 00 A0 E3 28 00 85 E5 08 00 A0 E3 60 00 85 E5 00 00 A0 E3 98 00 85 E5 2C 02 9F E5 36 00 00 EB 91 1F 8F E2 05 00 00 EA 04 00 A0 E3 28 00 85 E5 00 00 A0 E3 60 00 85 E5 98 00 85 E5 8B 1F 8F E2 04 00 95 E5 65 D7 FF EB", 42 | "patch": "05 00 A0 E3 04 00 00 EA 06 00 A0 E3 02 00 00 EA 07 00 A0 E3 00 00 00 EA 08 00 A0 E3 0D C0 A0 E1 00 D8 2D E9 04 B0 4C E2 0A DC 4D E2 00 00 8D E5 00 30 A0 E3 04 20 8D E2 01 0A 87 E2 01 10 D0 E4 20 00 51 E3 01 30 C2 04 01 10 C2 14 00 00 51 E3 F9 FF FF 1A 00 30 C2 E5 0D 00 A0 E1 05 1C 8D E2 EE F8 00 EB 00 05 9D E5 00 A8 1B E9 00 00 00 00 00 00 00 00" 43 | }, 44 | { 45 | "remark": "Immediately Break sub_E75D98 w/ jump to E76184", 46 | "offset": "0x402940", 47 | "size": 4, 48 | "prev_data": "0D C0 A0 E1", 49 | "patch": "F9 00 00 EA" 50 | }, 51 | { 52 | "remark": "0xE76184 Logging Patch", 53 | "offset": "0x402D30", 54 | "size": 172, 55 | "prev_data": "E0 DC 2D E9 04 B0 4C E2 4A DF 4D E2 00 A0 A0 E1 01 50 A0 E1 02 60 A0 E1 03 70 A0 E1 05 20 A0 E3 14 11 9F E5 46 0F 8D E2 2D 62 5C EB 0C 11 9F E5 00 00 95 E5 01 00 50 E1 46 1F 8D 02 05 00 A0 01 1E FE FF 0B 00 00 95 E5 00 00 90 E5 00 00 50 E3 E0 AC 1B D9 18 01 DD E5 00 00 50 E3 E0 AC 1B 09 18 00 8D E2 40 10 A0 E3 57 A3 5B EB D0 10 9F E5 00 00 91 E5 12 1E 9D E2 10 10 8D 02 25 9F 5B EB 00 00 50 E3 0C 00 00 1A 00 00 5A E3 B4 50 8F 02 B8 50 8F 12 BC 00 9F E5 24 11 9D E5 2C A8 5B EB 00 C0 A0 E1 20 A1 9D E5 07 00 A0 E1", 56 | "patch": "0E 00 2D E9 0D 20 A0 E1 C0 D8 2D E9 10 B0 4C E2 01 DB 4D E2 00 10 A0 E1 80 00 8D E2 C4 67 5C EB 0D 60 A0 E3 80 70 8D E2 5C 30 8D E2 08 00 8D E2 01 10 D7 E4 0A 00 51 E3 01 60 C0 04 00 00 51 E3 01 70 47 02 03 00 50 11 01 10 C0 E4 03 00 50 11 F6 FF FF 1A 00 10 A0 E3 00 10 C0 E5 03 20 A0 E3 04 20 8D E5 01 10 A0 E3 60 10 8D E5 0C 00 A0 E3 00 00 8D E5 64 30 8D E2 60 20 A0 E3 04 10 8D E2 14 00 8F E2 0A A0 5F EB 00 00 D7 E5 00 00 50 E3 E4 FF FF 1A 64 00 9D E5 C0 A8 1B E9 56 53 50 43 48 41 4E 4E 45 4C 00 00 00 00 00 00" 57 | }, 58 | { 59 | "remark": "Add entry jump to OCBB", 60 | "offset": "0xB945A0", 61 | "size": 4, 62 | "prev_data": "74 9E 01 00", 63 | "patch": "74 D1 01 00" 64 | }, 65 | { 66 | "remark": "Add entry jump to health", 67 | "offset": "0xB947B4", 68 | "size": 4, 69 | "prev_data": "7C C8 01 00", 70 | "patch": "5C D1 01 00" 71 | }, 72 | { 73 | "remark": "Add entry jump to OCSD", 74 | "offset": "0xB94808", 75 | "size": 4, 76 | "prev_data": "C8 CE 01 00", 77 | "patch": "6C D1 01 00" 78 | }, 79 | { 80 | "remark": "Add entry jump to fan", 81 | "offset": "0xB948E8", 82 | "size": 4, 83 | "prev_data": "5C D1 01 00", 84 | "patch": "64 D1 01 00" 85 | } 86 | ] 87 | -------------------------------------------------------------------------------- /patches/273/patches.md: -------------------------------------------------------------------------------- 1 | # Patches 2 | To the best of my ability, I've documented the patched bytes included in the patch_userland.json file below. 3 | 4 | ## Bypass signature check : BEQ XX -> B XX 5 | By patching the signature check in the userland, we're able to upload arbitrary firmware. This is a very similar change to the one we make in the kernel, except this validates the firmware after web upload, where the kernel change validates the firmware at boot. I'm not sure what the purpose of this code is - maybe to make it easier for /u/phoenixdev to work on changes? But the signature bypass didn't work in practice for me & I don't see this bypass in Airbus' research ... I might remove it in the future. 6 | 7 | ## Rename `quit` to `OCBB` 8 | In our table of commands, we must remove some known commands to make room for our new commands. Since `quit` is the same as `exit`, we can replace it with OCBB. 9 | 10 | ## Rename `VSPR` to `h` 11 | Next, since `VSP\R` is the same as `VSP`, we replace it with `h` to call our health utility 12 | 13 | ## Rename `DEBUG` to `OCSD` 14 | Since `debug` is not very useful, we replace it with `OCSD` to call the option card utility. 15 | 16 | ## Rename `NULL_CMD` to `FAN` 17 | Finally, Since `null_cmd` is unused, we can replace it with `fan` to call our fan utility 18 | 19 | ## Add function argument parsing & entry point for new functions 20 | This is a hefty patch and its easier to cover what its doing in the disassembly. In essence, we add the entrypoints 21 | for our 4 new functions and include an argument parser to handle those. See the documented asm patch [here](/patches/277/asm/fn_handler.S). 22 | 23 | This code replace some otherwise unused code that was handling null_cmd, which we removed already. 24 | Roughly, it parses the input arguments into a fat set of strings on the stack, spaced by `\0`, then calls 'sub_21B157C'. 25 | sub_21B157C fires a call to our health service -- which will in turn call the desired function (there's a jumptable in .health that corresponds to our 5/6/7/8 value on the stack. (.health.elf.text:00E04CB4) 26 | 27 | ## Immediately Break sub_E75D98 w/ jump to E76184 28 | Bypass default stdout behavior of `health` app and call E76184 instead. 29 | 30 | ## 0xE76184 Logging Patch 31 | The original piece of code here looks to be dead, so we replace it with our custom logging code that is entered from sub_E75D98. The previous function seems to serve as the general handler for all output from the health service; so we subvert all the output back into here instead. 32 | This replicates an IPC call from .ConAppCLI, calling the VSPChannel task to log data to the stdout. See the documented asm patch [here](/patches/277/asm/stdout.S). 33 | 34 | ## Add entry jump to OCBB 35 | There's also a separate array of shell command structs. Each element contains a pointer to the name, function, help function, and version function of a shell command. We move the second value, the function pointer, to point to the entrypoint marked previously. 36 | 37 | ## Add entry jump to health 38 | As above for OCBB, we make the change for `health`. 39 | 40 | ## Add entry jump to OCSD 41 | As above for OCBB, we make the change for `ocsd`. 42 | 43 | ## Add entry jump to fan 44 | As above for OCBB, we make the change for `fan`. 45 | -------------------------------------------------------------------------------- /patches/273/readme.md: -------------------------------------------------------------------------------- 1 | # iLO 2.73 Patch 2 | 3 | This patch patches the signature checking in the kernel + bootloader (just like 250/), as well as applies modifications 4 | to the iLO to unlock the iLO's locked fan controller, etc methods. 5 | 6 | The generated patch has the checksums: 7 | 06e572e9de5926208bfc52998abdc44410672a79 build/ilo4_273.bin.patched 8 | a773d99a5e1d9aee0915fcb3cd746d5c build/ilo4_273.bin.patched 9 | 10 | which are identical to the ilo4_273.bin.fancommands provided by /u/phoenixdev in their 2.73 release. 11 | -------------------------------------------------------------------------------- /patches/277-memdump/asm/fn_handler.S: -------------------------------------------------------------------------------- 1 | prologue: 2 | MOV R12, SP 3 | STMFD SP!, {R5-R11, R12, LR, PC} 4 | SUB R11, R12, #4 5 | SUB SP, SP, #0x104 6 | MOV R6, R0 7 | start: 8 | BL GrabContext ; grab_context(R0) 9 | MOV R5, R0 ; preserve context 10 | MOV R7, R5 ; i = 0 / wherever to start dumping 11 | MOV R6, R7 ; keep a copy of start index 12 | loop: 13 | ADD R0, SP, #4 ; storage spot SP+4 14 | ADR R1, printedString ; formatString 15 | MOV R2, R6 ; i 16 | LDRB R3, [R6], #1 ; byte, load byte @ i, R6++ 17 | BL sprintf ; libc sprintf(storage spot, formatString, i, byte) 18 | LDR R0, [R5, #4] ; R0 = context@0x4 19 | ADR R1, stringForm ; print sprintf result "%s" 20 | ADD R2, SP, #4 ; actual sprintf value @ SP+4 21 | BL printToShell ; print to shell (printf-y) 22 | SUB R0, R6, R7 23 | LDR R1, endPtr ; grab ending size 24 | CMP R0, R1 ; if we've printed more than ending size bytes 25 | BLT loop ; if less than end size, keep going! 26 | end: 27 | LDMDB R11, {R5-R11, SP, PC} ; epilogue 28 | 29 | GrabContext: 30 | LDR R10, GrabContext_fn 31 | BX R10 32 | GrabContext_fn: 33 | .word 0x00021F9C 34 | 35 | sprintf: 36 | LDR R10, sprintf_fn 37 | BX R10 38 | sprintf_fn: 39 | .word 0x017B407C 40 | 41 | printToShell: 42 | LDR R10, printToShell_fn 43 | BX R10 44 | printToShell_fn: 45 | .word 0x00012F68 46 | 47 | printedString: 48 | .string "%x : %x\r\n\r\n" 49 | stringForm: 50 | .string "%s" 51 | endPtr: 52 | .word 0x0000FFFF 53 | 54 | .skip 989, 0x0 55 | -------------------------------------------------------------------------------- /patches/277-memdump/config: -------------------------------------------------------------------------------- 1 | NAME="277-memdump" 2 | BINARY_NAME="ilo4_277.bin" 3 | BINARY_URL="https://downloads.hpe.com/pub/softlib2/software1/sc-linux-fw-ilo/p192122427/v188589/CP046020.scexe" 4 | BINARY_SHA1="128f2ce1834dd68e0b2d806243e14fcc27b51364" 5 | RESULT_SHA1="952dd04199698f861738759b2986323472ce3685" 6 | -------------------------------------------------------------------------------- /patches/277-memdump/patch_bootloader.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BNE XX -> MOV R0, #0", 4 | "offset": "0x38BC", 5 | "size": 4, 6 | "prev_data": "4000001A", 7 | "patch": "0000A0E1" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/277-memdump/patch_kernel.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BEQ XX -> B XX", 4 | "offset": "0x1FBB0", 5 | "size": 4, 6 | "prev_data": "0400000A", 7 | "patch": "040000EA" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/277-memdump/patch_userland.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Bypass signature check : BEQ XX -> B XX", 4 | "offset": "0x96EDE8", 5 | "size": 4, 6 | "prev_data": "1D 00 00 0A", 7 | "patch": "1D 00 00 EA" 8 | }, 9 | { 10 | "remark": "Rename `VSPR` to `DUMP`", 11 | "offset": "0xB8045C", 12 | "size": 5, 13 | "prev_data": "56 53 50 5C 52", 14 | "patch": "44 55 4D 50 00" 15 | }, 16 | { 17 | "remark": "Add function handler for dump", 18 | "offset": "0xAF9134", 19 | "size": 1136, 20 | "prev_data": "0D C0 A0 E1 E0 DC 2D E9 04 B0 4C E2 0A DC 4D E2 90 A2 9F E5 00 60 A0 E1 15 25 00 EB A2 1F 8F E2 00 50 A0 E1 88 A8 00 EB 0D 00 A0 E1 02 1C A0 E3 FD A8 5D EB 80 02 9F E5 00 70 85 E0 07 10 A0 E1 09 0C 8D E2 58 67 5E EB 99 0F 85 E2 21 67 5E EB 00 00 50 E3 3F 00 00 0A D9 0F 85 E2 1D 67 5E EB 00 00 50 E3 17 00 00 0A 02 0B 8D E2 40 10 A0 E3 ED A8 5D EB 02 2B 8D E2 99 1F 85 E2 06 00 A0 E1 01 3C A0 E3 89 A4 00 EB 02 1B 8D E2 06 00 A0 E1 F6 13 00 EB 01 00 70 E3 08 00 00 1A 09 1C 8D E2 06 00 A0 E1 F1 13 00 EB 02 00 A0 E3 28 00 85 E5 06 00 A0 E3 60 00 85 E5 00 00 A0 E3 50 00 00 EA 02 0C A0 E3 00 00 00 EA 01 0C A0 E3 0D 20 A0 E1 00 10 85 E0 59 1F 81 E2 06 00 A0 E1 02 3B A0 E3 DA FD FF EB 0D 00 A0 E1 FA 66 5E EB 00 00 50 E3 09 00 00 0A 00 00 A0 E3 28 00 85 E5 60 00 85 E5 98 00 85 E5 04 00 95 E5 93 11 00 EB 0D 10 A0 E1 06 00 A0 E1 F7 AE 00 EB 0A 00 00 EA 02 00 A0 E3 28 00 85 E5 08 00 A0 E3 60 00 85 E5 0B 00 A0 E3 98 00 85 E5 04 00 95 E5 87 11 00 EB 04 00 95 E5 5E 1F 8F E2 BD E8 FF EB 09 1C 8D E2 06 00 A0 E1 C6 13 00 EB E0 AC 1B E9 07 00 A0 E1 DD 66 5E EB 00 00 50 E3 2B 00 00 0A 55 1F 8F E2 07 00 A0 E1 28 67 5E EB 00 00 50 E3 26 00 00 0A 04 02 97 E5 24 10 90 E5 0D 20 A0 E1 00 00 51 E3 05 00 00 0A 02 00 A0 E1 02 2B A0 E3 7E 66 5E EB 00 00 A0 E3 FF 07 CD E5 03 00 00 EA 07 10 A0 E1 06 00 A0 E1 02 3B A0 E3 A5 FD FF EB 0D 00 A0 E1 C5 66 5E EB 00 00 50 E3 09 00 00 0A 00 00 A0 E3 28 00 85 E5 60 00 85 E5 98 00 85 E5 04 00 95 E5 5E 11 00 EB 0D 10 A0 E1 06 00 A0 E1 C2 AE 00 EB E0 AC 1B E9 02 00 A0 E3 28 00 85 E5 08 00 A0 E3 60 00 85 E5 0B 00 A0 E3 98 00 85 E5 04 00 95 E5 52 11 00 EB A8 10 8F E2 92 00 00 EA 00 00 A0 E3 28 00 85 E5 60 00 85 E5 98 00 85 E5 04 00 95 E5 4A 11 00 EB 88 60 8F E2 04 00 95 E5 06 10 A0 E1 7F E8 FF EB 04 00 95 E5 7C 10 8F E2 7C E8 FF EB 04 00 95 E5 06 10 A0 E1 79 E8 FF EB 21 00 00 EA 43 4C 49 5F 76 65 72 73 69 6F 6E 48 61 6E 64 6C 65 72 00 00 53 4D 2D 43 4C 50 20 25 73 20 56 65 72 73 69 6F 6E 20 25 64 2E 25 64 0D 0A 00 00 00 53 4D 2D 43 4C 50 20 56 65 72 73 69 6F 6E 20 25 64 2E 25 64 0D 0A 00 00 25 73 00 00 8C 8A 0D 00 43 4C 49 5F 68 65 6C 70 48 61 6E 64 6C 65 72 00 70 15 00 00 0D 0A 00 00 2F 00 00 00 44 4D 54 46 20 53 4D 41 53 48 20 43 4C 50 20 43 6F 6D 6D 61 6E 64 73 3A 0D 0A 00 00 04 00 95 E5 63 EC FF EB 04 00 95 E5 7A EC FF EB 04 00 95 E5 8C EC FF EB 04 00 95 E5 06 10 A0 E1 4D E8 FF EB 04 00 95 E5 50 ED FF EB 04 00 95 E5 06 10 A0 E1 48 E8 FF EB 04 00 95 E5 59 ED FF EB 04 00 95 E5 06 10 A0 E1 43 E8 FF EB 04 00 95 E5 5F ED FF EB 04 00 95 E5 06 10 A0 E1 3E E8 FF EB 04 00 95 E5 68 ED FF EB 04 00 95 E5 71 ED FF EB 04 00 95 E5 7A ED FF EB 04 00 95 E5 83 ED FF EB 04 00 95 E5 2A EE FF EB 04 00 95 E5 33 EE FF EB 04 00 95 E5 3C EE FF EB 04 00 95 E5 48 EC FF EB 04 00 95 E5 06 10 A0 E1 2B E8 FF EB 04 00 95 E5 40 EE FF EB 04 00 95 E5 06 10 A0 E1 26 E8 FF EB 04 00 95 E5 49 EE FF EB 04 00 95 E5 55 EE FF EB 04 00 95 E5 06 10 A0 E1 1F E8 FF EB 00 10 9A E5 00 00 51 E3 05 00 00 1A DC 2F 8F E2 90 13 9F E5 02 00 A0 E3 C2 70 01 EB 00 10 A0 E1 00 10 8A E5 04 00 95 E5 14 E8 FF EB 04 00 95 E5 DD 1F 8F E2 11 E8 FF EB 04 00 95 E5 DE 1F 8F E2 0E E8 FF EB 04 00 95 E5 42 EF FF EB 04 00 95 E5 4B EF FF EB 04 00 95 E5 FF EF FF EB 04 00 95 E5 08 F0 FF EB 04 00 95 E5 11 F0 FF EB 04 00 95 E5 1A F0 FF EB 04 00 95 E5 23 F0 FF EB 04 00 95 E5 2C F0 FF EB 04 00 95 E5 7B F9 FF EB 32 00 A0 E3 6D 55 01 EB 00 00 50 E3 04 00 95 15 3B F0 FF 1B 06 10 A0 E1 04 00 95 E5 F4 E7 FF EB E0 AC 1B E9", 21 | "file": "fn_handler.S" 22 | }, 23 | { 24 | "remark": "Add entry jump to dump", 25 | "offset": "0xB97848", 26 | "size": 4, 27 | "prev_data": "7C C8 01 00", 28 | "patch": "28 8B 01 00" 29 | } 30 | ] 31 | -------------------------------------------------------------------------------- /patches/277-memdump/readme.md: -------------------------------------------------------------------------------- 1 | # v2.77 memory dump 2 | 3 | Adds a function `dump` that dumps memory hex to the CLI 4 | 5 | Made obsolete by 277-tools 6 | -------------------------------------------------------------------------------- /patches/277-tools/asm/fan_handle.S: -------------------------------------------------------------------------------- 1 | h: 2 | MOV r0, #5 ; entrypoint for health (call switch #5) 3 | B start 4 | 5 | fan: 6 | MOV r0, #6 ; entrypoint for fan (call switch #6) 7 | B start 8 | 9 | ocsd: 10 | MOV r0, #7 ; entrypoint for ocsd (call switch #7) 11 | B start 12 | 13 | ocbb: 14 | MOV r0, #8 ; entrypoint for ocbb (call switch #8) 15 | 16 | start: 17 | MOV R12, SP ; Initialize 18 | PUSH {R11, R12, LR, PC} 19 | SUB R11, R12, #4 20 | SUB SP, SP, #0xA00 ; Allocate space on stack for IPC struct 21 | STR R0, [SP] ; Store R0 as first value in struct (switch value) 22 | MOV R3, #0 ; Init R3 to zero 23 | ADD R2, SP, #4 ; Move R2 to write at 0x4 in IPC struct 24 | ADD R0, R7, #0x1000 ; Move R0 to start of input arg 25 | loop: ; Parse string char-by-char 26 | LDRB R1, [R0], #1 ; Load char from string; R0++ (0x1000+i) 27 | CMP R1, #0x20 ; if loaded == ' ' 28 | STRBEQ R3, [R2],#1 ; then store \0 into R2, R2++ 29 | STRBNE R1, [R2],#1 ; else store char in R2, r2++ 30 | CMP R1, #0 ; if char != \0 31 | BNE loop ; then loop 32 | STRB R3, [R2] ; store final \0 onto R2 33 | MOV R0, SP ; Setup call 34 | ADD R1, SP, #0x500 ; Setup call 35 | BL 0x3e420 ; health_ipc_call(SP, SP+500) 36 | LDR R0, [SP,#0x500] ; load yielded value to R0 37 | LDMDB R11, {R11,SP,PC} ; exit 38 | 39 | .word 0x00000000 40 | .word 0x00000000 41 | -------------------------------------------------------------------------------- /patches/277-tools/asm/fan_log.S: -------------------------------------------------------------------------------- 1 | start: ; MOV R12, SP (not overwritten) 2 | PUSH {R1-R3} ; init 3 | MOV R2, SP 4 | PUSH {R6, R7, R11, R12, LR, PC} 5 | SUB R11, R12, #0x10 6 | SUB SP, SP, #0x400 ; Allocate space on stack 7 | MOV R1, R0 ; save first parameter 8 | ADD R0, SP, #0x80 ; Set R0 to 0x80 in stack struct 9 | BL 0x1718b34 ; libc call (?) 10 | MOV R6, #0xD ; R6 = 0xD (\r) 11 | ADD R7, SP, #0x80 ; Move R7 to 0x80 in stack struct 12 | restart: 13 | ADD R3, SP, #0x5C ; Move R3 to 0x5C in stack struct 14 | ADD R0, SP, #0x08 ; Move R0 to 0x08 in stack struct 15 | charloop: ; 16 | LDRB R1, [R7], #1 ; Read from 0x80+i 17 | CMP R1, #0xA ; if char == \n 18 | STRBEQ R6,[R0],#1 ; then store 0xD \r, R0++ 19 | CMP R1, #0 ; if char == \0 20 | SUBEQ R7, R7, #1 ; then R7 = R7 - 1 (move one character backwards?) 21 | CMPNE R0, R3 ; else if R0 != R3 22 | STRB R1, [R0], #1 ; always store char @ R0 (why is this here?) 23 | CMPNE R0, R3 ; else if R0 != R3 24 | BNE charloop ; break for next char 25 | MOV R1, #0x0 ; R1 = \0 26 | STRB R1, [R0] ; store \0 at end of R0 27 | MOV R2, #0x3 ; R2 = 0x3 28 | STR R2, [SP, #0x4] ; store 3 @ 0x4 in struct 29 | MOV R1, #0x1 ; R1 = 0x1 30 | STR R1, [SP, #0x60] ; store 1 @ 0x60 in struct 31 | MOV R0, #0xC ; R0 = #0xC 32 | STR R0, [SP] ; store 0xC @ 0x0 in struct 33 | ADD R3, SP, #0x64 ; R3 = SP + 0x64 34 | MOV R2, #0x60 ; R2 = 0x60 35 | ADD R1, SP, #4 ; R1 = SP + 0x4 36 | ADR R0, vspLabel ; R0 = VSPCHANNEL Task 37 | BL 0x17e6cb4 ; create IPC call (this is similar to .ConAppCLI's sub_5B57C / health IPC call) 38 | LDRB R0, [R7] ; get current character 39 | CMP R0, #0 ; if != \0 40 | BNE restart ; restart (send another line?) 41 | LDR R0, [SP, #0x64] ; end 42 | LDMDB R11, {R6, R7, R11, SP, PC} ; end 43 | 44 | vspLabel: 45 | .string "VSPCHANNEL" 46 | 47 | .word 0x0 48 | .byte 0x0 49 | -------------------------------------------------------------------------------- /patches/277-tools/asm/tools.S: -------------------------------------------------------------------------------- 1 | _start: 2 | MOV R12, SP 3 | STMFD SP!, {R5-R11, R12, LR, PC} 4 | SUB R11, R12, #4 5 | 6 | MOV R6, R0 7 | BL GrabContext 8 | MOV R5, R0 9 | MOV r8, #0 10 | ADD r1, r5, #0x264 11 | _addr_loop: 12 | LDRB R2, [R1, #1]! 13 | SUB R2, R2, #0x41 ; r2 = r2 - A 14 | CMP R2, #0x10 ; r2 - 0x10 15 | LSLLO R8, R8, #4 ; left shift #4 if below 0 16 | ADDLO R8, R8, R2 ; r8 = r8 + r2 if below 0 17 | BLO _addr_loop ; loop again if below 0 18 | 19 | LDRB R0, [R5, #0x264] 20 | CMP R0, #0x61 ; a 21 | BEQ cmd_alloc 22 | CMP R0, #0x66 ; f 23 | BEQ cmd_free 24 | CMP R0, #0x77 ; w 25 | BEQ cmd_write 26 | CMP R0, #0x78 ; x 27 | BEQ cmd_execute 28 | CMP R0, #0x72 ; r 29 | BEQ cmd_read 30 | 31 | MOV r3, r8 32 | ADD r2, r5, #0x264 33 | ADR r1, _message 34 | MOV r0, r6 35 | BL printToShell 36 | return: 37 | LDMDB R11, {R5-R11, SP, PC} ; epilogue 38 | 39 | cmd_write: ; wADDR CONTENT 40 | add r1, r5, #0x364 41 | 42 | _cmdw_data_loop: 43 | ldrb r2, [r1], #1 44 | sub r2, r2, #0x41 45 | cmp r2, #0x10 46 | bhs return 47 | lsl r3, r2, #4 48 | 49 | ldrb r2, [r1], #1 50 | sub r2, r2, #0x41 51 | cmp r2, #0x10 52 | bhs return 53 | add r3, r3, r2 54 | 55 | push {r0, r1, r2, r3} 56 | mov r2, r8 57 | adr r1, _cmdw_addr_fmt 58 | mov r0, r6 59 | bl printToShell 60 | pop {r0, r1, r2, r3} 61 | 62 | strb r3, [r8], #1 63 | b _cmdw_data_loop 64 | 65 | cmd_read: 66 | add r1, r5, #0x364 ; r1 is reading size value 67 | LDRB r9, [r1], #1 68 | mov r2, r8 ; r2 has start address 69 | _cmdr_data_loop: 70 | LDRB r8, [r2], #1 ; grab from r2, incrementing r2, load into r8 for print 71 | SUB r9, r9, #1 72 | cmp r9, #0 73 | blt return 74 | 75 | push {r0, r1, r2, r3} 76 | adr r1, _cmdr_addr_fmt 77 | mov r3, r8 78 | mov r0, r6 79 | bl printToShell 80 | pop {r0, r1, r2, r3} 81 | 82 | b _cmdr_data_loop 83 | cmd_alloc: ; aSIZE 84 | mov r0, r8 85 | bl libc_malloc 86 | mov r2, r0 87 | adr r1, _cmda_fmt 88 | mov r0, r6 89 | bl printToShell 90 | b return 91 | 92 | cmd_free: ; fADDR 93 | mov r2, r8 94 | adr r1, _cmdf_fmt 95 | mov r0, r6 96 | bl printToShell 97 | mov r0, r8 98 | bl libc_free 99 | b return 100 | 101 | cmd_execute: ; xADDR 102 | mov r1, r5 103 | mov r0, r6 104 | blx r8 105 | b return 106 | 107 | GrabContext: 108 | LDR R10, GrabContext_fn 109 | BX R10 110 | GrabContext_fn: 111 | .word 0x00021F9C 112 | 113 | sprintf: 114 | LDR R10, sprintf_fn 115 | BX R10 116 | sprintf_fn: 117 | .word 0x017B407C 118 | 119 | printToShell: 120 | LDR R10, printToShell_fn 121 | BX R10 122 | printToShell_fn: 123 | .word 0x00012F68 124 | 125 | libc_malloc: 126 | LDR R10, libc_malloc_fn 127 | BX R10 128 | libc_malloc_fn: 129 | .word 0x017B85E8 130 | 131 | libc_free: 132 | LDR R10, libc_free_fn 133 | BX R10 134 | libc_free_fn: 135 | .word 0x017B86F4 136 | 137 | _message: 138 | .ascii "arg[1]=%.256s, r8=%#x\r\n\0" 139 | 140 | _cmdw_addr_fmt: 141 | .ascii "%#x <- %#x\r\n\0" 142 | .align 2 143 | 144 | _cmdr_addr_fmt: 145 | .ascii "%#x : %#x\r\n\0" 146 | .align 2 147 | 148 | _cmda_fmt: 149 | .ascii "alloc %#x\r\n\0" 150 | 151 | _cmdf_fmt: 152 | .ascii "free %#x\r\n\0" 153 | 154 | .skip 673, 0x0 155 | -------------------------------------------------------------------------------- /patches/277-tools/config: -------------------------------------------------------------------------------- 1 | NAME="277-tools" 2 | BINARY_NAME="ilo4_277.bin" 3 | BINARY_URL="https://downloads.hpe.com/pub/softlib2/software1/sc-linux-fw-ilo/p192122427/v188589/CP046020.scexe" 4 | BINARY_SHA1="128f2ce1834dd68e0b2d806243e14fcc27b51364" 5 | RESULT_SHA1="b274fedc2a9cd6e45fe9c238f0f6b9a65144ab12" 6 | -------------------------------------------------------------------------------- /patches/277-tools/patch_bootloader.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BNE XX -> MOV R0, #0", 4 | "offset": "0x38BC", 5 | "size": 4, 6 | "prev_data": "4000001A", 7 | "patch": "0000A0E1" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/277-tools/patch_kernel.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BEQ XX -> B XX", 4 | "offset": "0x1FBB0", 5 | "size": 4, 6 | "prev_data": "0400000A", 7 | "patch": "040000EA" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/277-tools/patch_userland.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Bypass signature check : BEQ XX -> B XX", 4 | "offset": "0x96EDE8", 5 | "size": 4, 6 | "prev_data": "1D 00 00 0A", 7 | "patch": "1D 00 00 EA" 8 | }, 9 | { 10 | "remark": "replace help with tools", 11 | "offset": "0xAF9134", 12 | "size": 1136, 13 | "prev_data": "0D C0 A0 E1 E0 DC 2D E9 04 B0 4C E2 0A DC 4D E2 90 A2 9F E5 00 60 A0 E1 15 25 00 EB A2 1F 8F E2 00 50 A0 E1 88 A8 00 EB 0D 00 A0 E1 02 1C A0 E3 FD A8 5D EB 80 02 9F E5 00 70 85 E0 07 10 A0 E1 09 0C 8D E2 58 67 5E EB 99 0F 85 E2 21 67 5E EB 00 00 50 E3 3F 00 00 0A D9 0F 85 E2 1D 67 5E EB 00 00 50 E3 17 00 00 0A 02 0B 8D E2 40 10 A0 E3 ED A8 5D EB 02 2B 8D E2 99 1F 85 E2 06 00 A0 E1 01 3C A0 E3 89 A4 00 EB 02 1B 8D E2 06 00 A0 E1 F6 13 00 EB 01 00 70 E3 08 00 00 1A 09 1C 8D E2 06 00 A0 E1 F1 13 00 EB 02 00 A0 E3 28 00 85 E5 06 00 A0 E3 60 00 85 E5 00 00 A0 E3 50 00 00 EA 02 0C A0 E3 00 00 00 EA 01 0C A0 E3 0D 20 A0 E1 00 10 85 E0 59 1F 81 E2 06 00 A0 E1 02 3B A0 E3 DA FD FF EB 0D 00 A0 E1 FA 66 5E EB 00 00 50 E3 09 00 00 0A 00 00 A0 E3 28 00 85 E5 60 00 85 E5 98 00 85 E5 04 00 95 E5 93 11 00 EB 0D 10 A0 E1 06 00 A0 E1 F7 AE 00 EB 0A 00 00 EA 02 00 A0 E3 28 00 85 E5 08 00 A0 E3 60 00 85 E5 0B 00 A0 E3 98 00 85 E5 04 00 95 E5 87 11 00 EB 04 00 95 E5 5E 1F 8F E2 BD E8 FF EB 09 1C 8D E2 06 00 A0 E1 C6 13 00 EB E0 AC 1B E9 07 00 A0 E1 DD 66 5E EB 00 00 50 E3 2B 00 00 0A 55 1F 8F E2 07 00 A0 E1 28 67 5E EB 00 00 50 E3 26 00 00 0A 04 02 97 E5 24 10 90 E5 0D 20 A0 E1 00 00 51 E3 05 00 00 0A 02 00 A0 E1 02 2B A0 E3 7E 66 5E EB 00 00 A0 E3 FF 07 CD E5 03 00 00 EA 07 10 A0 E1 06 00 A0 E1 02 3B A0 E3 A5 FD FF EB 0D 00 A0 E1 C5 66 5E EB 00 00 50 E3 09 00 00 0A 00 00 A0 E3 28 00 85 E5 60 00 85 E5 98 00 85 E5 04 00 95 E5 5E 11 00 EB 0D 10 A0 E1 06 00 A0 E1 C2 AE 00 EB E0 AC 1B E9 02 00 A0 E3 28 00 85 E5 08 00 A0 E3 60 00 85 E5 0B 00 A0 E3 98 00 85 E5 04 00 95 E5 52 11 00 EB A8 10 8F E2 92 00 00 EA 00 00 A0 E3 28 00 85 E5 60 00 85 E5 98 00 85 E5 04 00 95 E5 4A 11 00 EB 88 60 8F E2 04 00 95 E5 06 10 A0 E1 7F E8 FF EB 04 00 95 E5 7C 10 8F E2 7C E8 FF EB 04 00 95 E5 06 10 A0 E1 79 E8 FF EB 21 00 00 EA 43 4C 49 5F 76 65 72 73 69 6F 6E 48 61 6E 64 6C 65 72 00 00 53 4D 2D 43 4C 50 20 25 73 20 56 65 72 73 69 6F 6E 20 25 64 2E 25 64 0D 0A 00 00 00 53 4D 2D 43 4C 50 20 56 65 72 73 69 6F 6E 20 25 64 2E 25 64 0D 0A 00 00 25 73 00 00 8C 8A 0D 00 43 4C 49 5F 68 65 6C 70 48 61 6E 64 6C 65 72 00 70 15 00 00 0D 0A 00 00 2F 00 00 00 44 4D 54 46 20 53 4D 41 53 48 20 43 4C 50 20 43 6F 6D 6D 61 6E 64 73 3A 0D 0A 00 00 04 00 95 E5 63 EC FF EB 04 00 95 E5 7A EC FF EB 04 00 95 E5 8C EC FF EB 04 00 95 E5 06 10 A0 E1 4D E8 FF EB 04 00 95 E5 50 ED FF EB 04 00 95 E5 06 10 A0 E1 48 E8 FF EB 04 00 95 E5 59 ED FF EB 04 00 95 E5 06 10 A0 E1 43 E8 FF EB 04 00 95 E5 5F ED FF EB 04 00 95 E5 06 10 A0 E1 3E E8 FF EB 04 00 95 E5 68 ED FF EB 04 00 95 E5 71 ED FF EB 04 00 95 E5 7A ED FF EB 04 00 95 E5 83 ED FF EB 04 00 95 E5 2A EE FF EB 04 00 95 E5 33 EE FF EB 04 00 95 E5 3C EE FF EB 04 00 95 E5 48 EC FF EB 04 00 95 E5 06 10 A0 E1 2B E8 FF EB 04 00 95 E5 40 EE FF EB 04 00 95 E5 06 10 A0 E1 26 E8 FF EB 04 00 95 E5 49 EE FF EB 04 00 95 E5 55 EE FF EB 04 00 95 E5 06 10 A0 E1 1F E8 FF EB 00 10 9A E5 00 00 51 E3 05 00 00 1A DC 2F 8F E2 90 13 9F E5 02 00 A0 E3 C2 70 01 EB 00 10 A0 E1 00 10 8A E5 04 00 95 E5 14 E8 FF EB 04 00 95 E5 DD 1F 8F E2 11 E8 FF EB 04 00 95 E5 DE 1F 8F E2 0E E8 FF EB 04 00 95 E5 42 EF FF EB 04 00 95 E5 4B EF FF EB 04 00 95 E5 FF EF FF EB 04 00 95 E5 08 F0 FF EB 04 00 95 E5 11 F0 FF EB 04 00 95 E5 1A F0 FF EB 04 00 95 E5 23 F0 FF EB 04 00 95 E5 2C F0 FF EB 04 00 95 E5 7B F9 FF EB 32 00 A0 E3 6D 55 01 EB 00 00 50 E3 04 00 95 15 3B F0 FF 1B 06 10 A0 E1 04 00 95 E5 F4 E7 FF EB E0 AC 1B E9", 14 | "file": "tools.S" 15 | }, 16 | { 17 | "remark": "Rename `quit` to `OCBB`", 18 | "offset": "0xB80348", 19 | "size": 4, 20 | "prev_data": "71 75 69 74", 21 | "patch": "4F 43 42 42" 22 | }, 23 | { 24 | "remark": "Rename `VSPR` to `h`", 25 | "offset": "0xB8045C", 26 | "size": 5, 27 | "prev_data": "56 53 50 5C 52", 28 | "patch": "48 00 00 00 00" 29 | }, 30 | { 31 | "remark": "Rename `DEBUG` to `OCSD`", 32 | "offset": "0xB80474", 33 | "size": 5, 34 | "prev_data": "44 45 42 55 47", 35 | "patch": "4F 43 53 44 00" 36 | }, 37 | { 38 | "remark": "Rename `NULL_CMD` to `FAN`", 39 | "offset": "0xB804D0", 40 | "size": 8, 41 | "prev_data": "4E 55 4C 4C 5F 43 4D 44", 42 | "patch": "46 41 4E 00 00 00 00 00" 43 | }, 44 | { 45 | "remark": "Add function handler for new functions", 46 | "offset": "0xAFD768", 47 | "size": 116, 48 | "prev_data": "0D C0 A0 E1 20 D8 2D E9 04 B0 4C E2 8B 13 00 EB 9A 1F 8F E2 00 50 A0 E1 FE 96 00 EB 54 12 9F E5 04 00 95 E5 01 00 50 E1 09 00 00 1A 02 00 A0 E3 28 00 85 E5 08 00 A0 E3 60 00 85 E5 00 00 A0 E3 98 00 85 E5 2C 02 9F E5 36 00 00 EB 91 1F 8F E2 05 00 00 EA 04 00 A0 E3 28 00 85 E5 00 00 A0 E3 60 00 85 E5 98 00 85 E5 8B 1F 8F E2 04 00 95 E5 65 D7 FF EB", 49 | "file": "fan_handle.S" 50 | }, 51 | { 52 | "remark": "Immediately Break sub_E75D98 w/ jump to E76184", 53 | "offset": "0x404394", 54 | "size": 4, 55 | "prev_data": "0D C0 A0 E1", 56 | "patch": "F9 00 00 EA" 57 | }, 58 | { 59 | "remark": "0xE76184 Logging Patch", 60 | "offset": "0x404784", 61 | "size": 172, 62 | "prev_data": "E0 DC 2D E9 04 B0 4C E2 4A DF 4D E2 00 A0 A0 E1 01 50 A0 E1 02 60 A0 E1 03 70 A0 E1 05 20 A0 E3 14 11 9F E5 46 0F 8D E2 2D 5D 5C EB 0C 11 9F E5 00 00 95 E5 01 00 50 E1 46 1F 8D 02 05 00 A0 01 1E FE FF 0B 00 00 95 E5 00 00 90 E5 00 00 50 E3 E0 AC 1B D9 18 01 DD E5 00 00 50 E3 E0 AC 1B 09 18 00 8D E2 40 10 A0 E3 57 9E 5B EB D0 10 9F E5 00 00 91 E5 12 1E 9D E2 10 10 8D 02 25 9A 5B EB 00 00 50 E3 0C 00 00 1A 00 00 5A E3 B4 50 8F 02 B8 50 8F 12 BC 00 9F E5 24 11 9D E5 2C A3 5B EB 00 C0 A0 E1 20 A1 9D E5 07 00 A0 E1", 63 | "file": "fan_log.S" 64 | }, 65 | { 66 | "remark": "Add entry jump to OCBB", 67 | "offset": "0xB97634", 68 | "size": 4, 69 | "prev_data": "74 9E 01 00", 70 | "patch": "74 D1 01 00" 71 | }, 72 | { 73 | "remark": "Add entry jump to health", 74 | "offset": "0xB97848", 75 | "size": 4, 76 | "prev_data": "7C C8 01 00", 77 | "patch": "5C D1 01 00" 78 | }, 79 | { 80 | "remark": "Add entry jump to OCSD", 81 | "offset": "0xB9789C", 82 | "size": 4, 83 | "prev_data": "C8 CE 01 00", 84 | "patch": "6C D1 01 00" 85 | }, 86 | { 87 | "remark": "Add entry jump to fan", 88 | "offset": "0xB9797C", 89 | "size": 4, 90 | "prev_data": "5C D1 01 00", 91 | "patch": "64 D1 01 00" 92 | } 93 | ] 94 | -------------------------------------------------------------------------------- /patches/277-tools/readme.md: -------------------------------------------------------------------------------- 1 | # v2.77 tools 2 | 3 | Includes the tools from Airbus Security Labs for probing memory over SSH 4 | -------------------------------------------------------------------------------- /patches/277/asm/fn_handler.S: -------------------------------------------------------------------------------- 1 | h: 2 | MOV r0, #5 ; entrypoint for health (call switch #5) 3 | B start 4 | 5 | fan: 6 | MOV r0, #6 ; entrypoint for fan (call switch #6) 7 | B start 8 | 9 | ocsd: 10 | MOV r0, #7 ; entrypoint for ocsd (call switch #7) 11 | B start 12 | 13 | ocbb: 14 | MOV r0, #8 ; entrypoint for ocbb (call switch #8) 15 | 16 | start: 17 | MOV R12, SP ; Initialize 18 | PUSH {R11, R12, LR, PC} 19 | SUB R11, R12, #4 20 | SUB SP, SP, #0xA00 ; Allocate space on stack for IPC struct 21 | STR R0, [SP] ; Store R0 as first value in struct (switch value) 22 | MOV R3, #0 ; Init R3 to zero 23 | ADD R2, SP, #4 ; Move R2 to write at 0x4 in IPC struct 24 | ADD R0, R7, #0x1000 ; Move R0 to start of input arg 25 | loop: ; Parse string char-by-char 26 | LDRB R1, [R0], #1 ; Load char from string; R0++ (0x1000+i) 27 | CMP R1, #0x20 ; if loaded == ' ' 28 | STRBEQ R3, [R2],#1 ; then store \0 into R2, R2++ 29 | STRBNE R1, [R2],#1 ; else store char in R2, r2++ 30 | CMP R1, #0 ; if char != \0 31 | BNE loop ; then loop 32 | STRB R3, [R2] ; store final \0 onto R2 33 | MOV R0, SP ; Setup call 34 | ADD R1, SP, #0x500 ; Setup call 35 | BL 0x3e420 ; health_ipc_call(SP, SP+500) 36 | LDR R0, [SP,#0x500] ; load yielded value to R0 37 | LDMDB R11, {R11,SP,PC} ; exit 38 | 39 | .word 0x00000000 40 | .word 0x00000000 41 | -------------------------------------------------------------------------------- /patches/277/asm/stdout.S: -------------------------------------------------------------------------------- 1 | start: ; MOV R12, SP (not overwritten) 2 | PUSH {R1-R3} ; init 3 | MOV R2, SP 4 | PUSH {R6, R7, R11, R12, LR, PC} 5 | SUB R11, R12, #0x10 6 | SUB SP, SP, #0x400 ; Allocate space on stack 7 | MOV R1, R0 ; save first parameter 8 | ADD R0, SP, #0x80 ; Set R0 to 0x80 in stack struct 9 | BL 0x1718b34 ; libc call (?) 10 | MOV R6, #0xD ; R6 = 0xD (\r) 11 | ADD R7, SP, #0x80 ; Move R7 to 0x80 in stack struct 12 | restart: 13 | ADD R3, SP, #0x5C ; Move R3 to 0x5C in stack struct 14 | ADD R0, SP, #0x08 ; Move R0 to 0x08 in stack struct 15 | charloop: ; 16 | LDRB R1, [R7], #1 ; Read from 0x80+i 17 | CMP R1, #0xA ; if char == \n 18 | STRBEQ R6,[R0],#1 ; then store 0xD \r, R0++ 19 | CMP R1, #0 ; if char == \0 20 | SUBEQ R7, R7, #1 ; then R7 = R7 - 1 (move one character backwards?) 21 | CMPNE R0, R3 ; else if R0 != R3 22 | STRB R1, [R0], #1 ; always store char @ R0 (why is this here?) 23 | CMPNE R0, R3 ; else if R0 != R3 24 | BNE charloop ; break for next char 25 | MOV R1, #0x0 ; R1 = \0 26 | STRB R1, [R0] ; store \0 at end of R0 27 | MOV R2, #0x3 ; R2 = 0x3 28 | STR R2, [SP, #0x4] ; store 3 @ 0x4 in struct 29 | MOV R1, #0x1 ; R1 = 0x1 30 | STR R1, [SP, #0x60] ; store 1 @ 0x60 in struct 31 | MOV R0, #0xC ; R0 = #0xC 32 | STR R0, [SP] ; store 0xC @ 0x0 in struct 33 | ADD R3, SP, #0x64 ; R3 = SP + 0x64 34 | MOV R2, #0x60 ; R2 = 0x60 35 | ADD R1, SP, #4 ; R1 = SP + 0x4 36 | ADR R0, vspLabel ; R0 = VSPCHANNEL Task 37 | BL 0x17e6cb4 ; create IPC call (this is similar to .ConAppCLI's sub_5B57C / health IPC call) 38 | LDRB R0, [R7] ; get current character 39 | CMP R0, #0 ; if != \0 40 | BNE restart ; restart (send another line?) 41 | LDR R0, [SP, #0x64] ; end 42 | LDMDB R11, {R6, R7, R11, SP, PC} ; end 43 | 44 | vspLabel: 45 | .string "VSPCHANNEL" 46 | 47 | .word 0x0 48 | .byte 0x0 49 | -------------------------------------------------------------------------------- /patches/277/config: -------------------------------------------------------------------------------- 1 | NAME="277" 2 | BINARY_NAME="ilo4_277.bin" 3 | BINARY_URL="https://downloads.hpe.com/pub/softlib2/software1/sc-linux-fw-ilo/p192122427/v188589/CP046020.scexe" 4 | BINARY_SHA1="128f2ce1834dd68e0b2d806243e14fcc27b51364" 5 | RESULT_SHA1="952dd04199698f861738759b2986323472ce3685" 6 | -------------------------------------------------------------------------------- /patches/277/patch_bootloader.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BNE XX -> MOV R0, #0", 4 | "offset": "0x38BC", 5 | "size": 4, 6 | "prev_data": "4000001A", 7 | "patch": "0000A0E1" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/277/patch_kernel.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BEQ XX -> B XX", 4 | "offset": "0x1FBB0", 5 | "size": 4, 6 | "prev_data": "0400000A", 7 | "patch": "040000EA" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/277/patch_userland.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Bypass signature check : BEQ XX -> B XX", 4 | "offset": "0x96EDE8", 5 | "size": 4, 6 | "prev_data": "1D 00 00 0A", 7 | "patch": "1D 00 00 EA" 8 | }, 9 | { 10 | "remark": "Rename `quit` to `OCBB`", 11 | "offset": "0xB80348", 12 | "size": 4, 13 | "prev_data": "71 75 69 74", 14 | "patch": "4F 43 42 42" 15 | }, 16 | { 17 | "remark": "Rename `VSPR` to `h`", 18 | "offset": "0xB8045C", 19 | "size": 5, 20 | "prev_data": "56 53 50 5C 52", 21 | "patch": "48 00 00 00 00" 22 | }, 23 | { 24 | "remark": "Rename `DEBUG` to `OCSD`", 25 | "offset": "0xB80474", 26 | "size": 5, 27 | "prev_data": "44 45 42 55 47", 28 | "patch": "4F 43 53 44 00" 29 | }, 30 | { 31 | "remark": "Rename `NULL_CMD` to `FAN`", 32 | "offset": "0xB804D0", 33 | "size": 8, 34 | "prev_data": "4E 55 4C 4C 5F 43 4D 44", 35 | "patch": "46 41 4E 00 00 00 00 00" 36 | }, 37 | { 38 | "remark": "Add function handler for new functions", 39 | "offset": "0xAFD768", 40 | "size": 116, 41 | "prev_data": "0D C0 A0 E1 20 D8 2D E9 04 B0 4C E2 8B 13 00 EB 9A 1F 8F E2 00 50 A0 E1 FE 96 00 EB 54 12 9F E5 04 00 95 E5 01 00 50 E1 09 00 00 1A 02 00 A0 E3 28 00 85 E5 08 00 A0 E3 60 00 85 E5 00 00 A0 E3 98 00 85 E5 2C 02 9F E5 36 00 00 EB 91 1F 8F E2 05 00 00 EA 04 00 A0 E3 28 00 85 E5 00 00 A0 E3 60 00 85 E5 98 00 85 E5 8B 1F 8F E2 04 00 95 E5 65 D7 FF EB", 42 | "file": "fn_handler.S" 43 | }, 44 | { 45 | "remark": "Immediately Break sub_E75D98 w/ jump to E76184", 46 | "offset": "0x404394", 47 | "size": 4, 48 | "prev_data": "0D C0 A0 E1", 49 | "patch": "F9 00 00 EA" 50 | }, 51 | { 52 | "remark": "0xE76184 Logging Patch", 53 | "offset": "0x404784", 54 | "size": 172, 55 | "prev_data": "E0 DC 2D E9 04 B0 4C E2 4A DF 4D E2 00 A0 A0 E1 01 50 A0 E1 02 60 A0 E1 03 70 A0 E1 05 20 A0 E3 14 11 9F E5 46 0F 8D E2 2D 5D 5C EB 0C 11 9F E5 00 00 95 E5 01 00 50 E1 46 1F 8D 02 05 00 A0 01 1E FE FF 0B 00 00 95 E5 00 00 90 E5 00 00 50 E3 E0 AC 1B D9 18 01 DD E5 00 00 50 E3 E0 AC 1B 09 18 00 8D E2 40 10 A0 E3 57 9E 5B EB D0 10 9F E5 00 00 91 E5 12 1E 9D E2 10 10 8D 02 25 9A 5B EB 00 00 50 E3 0C 00 00 1A 00 00 5A E3 B4 50 8F 02 B8 50 8F 12 BC 00 9F E5 24 11 9D E5 2C A3 5B EB 00 C0 A0 E1 20 A1 9D E5 07 00 A0 E1", 56 | "file": "stdout.S" 57 | }, 58 | { 59 | "remark": "Add entry jump to OCBB", 60 | "offset": "0xB97634", 61 | "size": 4, 62 | "prev_data": "74 9E 01 00", 63 | "patch": "74 D1 01 00" 64 | }, 65 | { 66 | "remark": "Add entry jump to health", 67 | "offset": "0xB97848", 68 | "size": 4, 69 | "prev_data": "7C C8 01 00", 70 | "patch": "5C D1 01 00" 71 | }, 72 | { 73 | "remark": "Add entry jump to OCSD", 74 | "offset": "0xB9789C", 75 | "size": 4, 76 | "prev_data": "C8 CE 01 00", 77 | "patch": "6C D1 01 00" 78 | }, 79 | { 80 | "remark": "Add entry jump to fan", 81 | "offset": "0xB9797C", 82 | "size": 4, 83 | "prev_data": "5C D1 01 00", 84 | "patch": "64 D1 01 00" 85 | } 86 | ] 87 | -------------------------------------------------------------------------------- /patches/277/patches.md: -------------------------------------------------------------------------------- 1 | # Patches 2 | To the best of my ability, I've documented the patched bytes included in the patch_userland.json file below. 3 | 4 | ## 0xE76184 Logging Patch 5 | This is the only patch I had to change. It makes some calls to relative libraries in memory (libc & VCom Shared), whose positions moved (I guess if the local memory got shifted due to changes of library sizes, etc). I originally didn't notice this and it caused an stdout error (see research/2022-02-19). Our patch is identical to 273, except we move the BL instructions to point to the correct offsets. 6 | 7 | Otherwise, I moved around offsets. Here's some Array of Bytes / AoBs I used to track down the pointers: 8 | 9 | Check out my documented asm in asm/stdout.S 10 | 11 | ## Bypass signature check : BEQ XX -> B XX 12 | AOB 02 80 83 E0 87 1E 00 EB 00 20 B0 E1 1D 00 00 0A 13 | one match 14 | 15 | ## Command Strings (`quit`) 16 | AOB 00 00 00 00 71 75 69 74 00 00 00 00 6F 65 6D 68 17 | one match 18 | 19 | (look nearby for the rest of the command strings) 20 | 21 | ## Function entrypoint 22 | AOB 0D C0 A0 E1 20 D8 2D E9 04 B0 4C E2 8B 13 00 EB 9A 23 | one match 24 | 25 | Check out my documented asm in asm/fn_handler.S 26 | 27 | ## Health Break 28 | AOB 0D C0 A0 E1 0E 00 2D E9 00 D8 2D E9 10 B0 4C E2 08 D0 4D E2 29 | 9th match -- it's probably safe-r to use IDA and find the match inside the .health segment 30 | 31 | I always struggled to find the actual logging code placement -- it's likely easiest to just go to the breakpoint and scroll down, or patch Health Break above and follow the jump, since the pointer stays correct 32 | 33 | ## Command Function Calls 34 | All of the function calls have pretty unique AoBs for their actual call pointers; i.e. 35 | 74 9E 01 00 -> OCBB (use the second match!) 36 | 7C C8 01 00 -> health (use the first match!) 37 | C8 CE 01 00 -> OCSD (use the second match!) 38 | 5C D1 01 00 -> Fan (use the last match!) 39 | 40 | Just find the match that's within the concli .data -- there's a few duplicates because these methods are duplicates (i.e. exit/quit call the same thing), but you should be able to use the order to figure it out. Command order doesn't change between builds (historically anyway). 41 | 42 | ## Kernel Patch 43 | AOB 30 10 95 E5 00 00 50 E3 04 00 00 0A 00 00 51 E3 44 | one match 45 | -------------------------------------------------------------------------------- /patches/277/readme.md: -------------------------------------------------------------------------------- 1 | # iLO 2.77 Patch 2 | 3 | This patch patches the signature checking in the kernel + bootloader (just like 250/), as well as applies modifications 4 | to the iLO to unlock the iLO's locked fan controller, etc methods. More or less, it is an updated version of 2.73's patches applied onto 2.77. 5 | -------------------------------------------------------------------------------- /patches/278/config: -------------------------------------------------------------------------------- 1 | NAME="278" 2 | BINARY_NAME="ilo4_278.bin" 3 | BINARY_URL="https://downloads.hpe.com/pub/softlib2/software1/sc-linux-fw-ilo/p192122427/v190650/CP046465.scexe" 4 | BINARY_SHA1="3d2cbbbde4bae76d6d9ead270eff445d5dda82fd" 5 | RESULT_SHA1="f5ffde92168ec9e18102c4125f23079c954f3d71" 6 | -------------------------------------------------------------------------------- /patches/278/patch_bootloader.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BNE XX -> MOV R0, #0", 4 | "offset": "0x38BC", 5 | "size": 4, 6 | "prev_data": "4000001A", 7 | "patch": "0000A0E1" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/278/patch_kernel.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BEQ XX -> B XX", 4 | "offset": "0x1FBB0", 5 | "size": 4, 6 | "prev_data": "0400000A", 7 | "patch": "040000EA" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/278/patch_userland.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Bypass signature check : BEQ XX -> B XX", 4 | "offset": "0x964ADC", 5 | "size": 4, 6 | "prev_data": "1D 00 00 0A", 7 | "patch": "1D 00 00 EA" 8 | }, 9 | { 10 | "remark": "Rename `quit` to `OCBB`", 11 | "offset": "0xB73F70", 12 | "size": 4, 13 | "prev_data": "71 75 69 74", 14 | "patch": "4F 43 42 42" 15 | }, 16 | { 17 | "remark": "Rename `VSPR` to `h`", 18 | "offset": "0xB74084", 19 | "size": 5, 20 | "prev_data": "56 53 50 5C 52", 21 | "patch": "48 00 00 00 00" 22 | }, 23 | { 24 | "remark": "Rename `DEBUG` to `OCSD`", 25 | "offset": "0xB7409C", 26 | "size": 5, 27 | "prev_data": "44 45 42 55 47", 28 | "patch": "4F 43 53 44 00" 29 | }, 30 | { 31 | "remark": "Rename `NULL_CMD` to `FAN`", 32 | "offset": "0xB740F8", 33 | "size": 8, 34 | "prev_data": "4E 55 4C 4C 5F 43 4D 44", 35 | "patch": "46 41 4E 00 00 00 00 00" 36 | }, 37 | { 38 | "remark": "Add function handler for new functions", 39 | "offset": "0xAF1390", 40 | "size": 116, 41 | "prev_data": "0D C0 A0 E1 20 D8 2D E9 04 B0 4C E2 8B 13 00 EB 9A 1F 8F E2 00 50 A0 E1 FE 96 00 EB 54 12 9F E5 04 00 95 E5 01 00 50 E1 09 00 00 1A 02 00 A0 E3 28 00 85 E5 08 00 A0 E3 60 00 85 E5 00 00 A0 E3 98 00 85 E5 2C 02 9F E5 36 00 00 EB 91 1F 8F E2 05 00 00 EA 04 00 A0 E3 28 00 85 E5 00 00 A0 E3 60 00 85 E5 98 00 85 E5 8B 1F 8F E2 04 00 95 E5 65 D7 FF EB", 42 | "patch": "05 00 A0 E3 04 00 00 EA 06 00 A0 E3 02 00 00 EA 07 00 A0 E3 00 00 00 EA 08 00 A0 E3 0D C0 A0 E1 00 D8 2D E9 04 B0 4C E2 0A DC 4D E2 00 00 8D E5 00 30 A0 E3 04 20 8D E2 01 0A 87 E2 01 10 D0 E4 20 00 51 E3 01 30 C2 04 01 10 C2 14 00 00 51 E3 F9 FF FF 1A 00 30 C2 E5 0D 00 A0 E1 05 1C 8D E2 EE F8 00 EB 00 05 9D E5 00 A8 1B E9 00 00 00 00 00 00 00 00" 43 | }, 44 | { 45 | "remark": "Add entry jump to OCBB", 46 | "offset": "0xB8B25C", 47 | "size": 4, 48 | "prev_data": "74 9E 01 00", 49 | "patch": "74 D1 01 00" 50 | }, 51 | { 52 | "remark": "Add entry jump to health", 53 | "offset": "0xB8B470", 54 | "size": 4, 55 | "prev_data": "7C C8 01 00", 56 | "patch": "5C D1 01 00" 57 | }, 58 | { 59 | "remark": "Add entry jump to OCSD", 60 | "offset": "0xB8B4C4", 61 | "size": 4, 62 | "prev_data": "C8 CE 01 00", 63 | "patch": "6C D1 01 00" 64 | }, 65 | { 66 | "remark": "Add entry jump to fan", 67 | "offset": "0xB8B5A4", 68 | "size": 4, 69 | "prev_data": "5C D1 01 00", 70 | "patch": "64 D1 01 00" 71 | } 72 | ] 73 | -------------------------------------------------------------------------------- /patches/278/patches.md: -------------------------------------------------------------------------------- 1 | # Patches 2 | To the best of my ability, I've documented the patched bytes included in the patch_userland.json file below. 3 | 4 | ... coming soon! mostly, however, it matches 273's patches. 5 | -------------------------------------------------------------------------------- /patches/278/readme.md: -------------------------------------------------------------------------------- 1 | # iLO 2.78 Patch 2 | 3 | This patch patches the signature checking in the kernel + bootloader (just like 250/), as well as applies modifications to the iLO to enable access to `health` calls. 4 | 5 | HOWEVER! HPE has REMOVED all of our useful utilities in iLO 2.78. So, this patch is dead for now. 6 | -------------------------------------------------------------------------------- /patches/279/config: -------------------------------------------------------------------------------- 1 | NAME="279" 2 | BINARY_NAME="ilo4_279.bin" 3 | BINARY_URL="https://downloads.hpe.com/pub/softlib2/software1/sc-linux-fw-ilo/p192122427/v204995/CP049647.scexe" 4 | BINARY_SHA1="5eda64af2351907ef8f40cb828e88b554d46bc54" 5 | RESULT_SHA1="973c31a142489cdc02e800cbba75fc0021388055" 6 | -------------------------------------------------------------------------------- /patches/279/patch_bootloader.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BNE XX -> MOV R0, #0", 4 | "offset": "0x38BC", 5 | "size": 4, 6 | "prev_data": "4000001A", 7 | "patch": "0000A0E1" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/279/patch_kernel.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Patch signature check : BEQ XX -> B XX", 4 | "offset": "0x1FBB0", 5 | "size": 4, 6 | "prev_data": "0400000A", 7 | "patch": "040000EA" 8 | } 9 | ] 10 | -------------------------------------------------------------------------------- /patches/279/patch_userland.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "remark": "Bypass signature check : BEQ XX -> B XX", 4 | "offset": "0x964ADC", 5 | "size": 4, 6 | "prev_data": "1D 00 00 0A", 7 | "patch": "1D 00 00 EA" 8 | }, 9 | { 10 | "remark": "Rename `quit` to `OCBB`", 11 | "offset": "0xB73F70", 12 | "size": 4, 13 | "prev_data": "71 75 69 74", 14 | "patch": "4F 43 42 42" 15 | }, 16 | { 17 | "remark": "Rename `VSPR` to `h`", 18 | "offset": "0xB74084", 19 | "size": 5, 20 | "prev_data": "56 53 50 5C 52", 21 | "patch": "48 00 00 00 00" 22 | }, 23 | { 24 | "remark": "Rename `DEBUG` to `OCSD`", 25 | "offset": "0xB7409C", 26 | "size": 5, 27 | "prev_data": "44 45 42 55 47", 28 | "patch": "4F 43 53 44 00" 29 | }, 30 | { 31 | "remark": "Rename `NULL_CMD` to `FAN`", 32 | "offset": "0xB740F8", 33 | "size": 8, 34 | "prev_data": "4E 55 4C 4C 5F 43 4D 44", 35 | "patch": "46 41 4E 00 00 00 00 00" 36 | }, 37 | { 38 | "remark": "Add function handler for new functions", 39 | "offset": "0xAF1390", 40 | "size": 116, 41 | "prev_data": "0D C0 A0 E1 20 D8 2D E9 04 B0 4C E2 8B 13 00 EB 9A 1F 8F E2 00 50 A0 E1 FE 96 00 EB 54 12 9F E5 04 00 95 E5 01 00 50 E1 09 00 00 1A 02 00 A0 E3 28 00 85 E5 08 00 A0 E3 60 00 85 E5 00 00 A0 E3 98 00 85 E5 2C 02 9F E5 36 00 00 EB 91 1F 8F E2 05 00 00 EA 04 00 A0 E3 28 00 85 E5 00 00 A0 E3 60 00 85 E5 98 00 85 E5 8B 1F 8F E2 04 00 95 E5 65 D7 FF EB", 42 | "patch": "05 00 A0 E3 04 00 00 EA 06 00 A0 E3 02 00 00 EA 07 00 A0 E3 00 00 00 EA 08 00 A0 E3 0D C0 A0 E1 00 D8 2D E9 04 B0 4C E2 0A DC 4D E2 00 00 8D E5 00 30 A0 E3 04 20 8D E2 01 0A 87 E2 01 10 D0 E4 20 00 51 E3 01 30 C2 04 01 10 C2 14 00 00 51 E3 F9 FF FF 1A 00 30 C2 E5 0D 00 A0 E1 05 1C 8D E2 EE F8 00 EB 00 05 9D E5 00 A8 1B E9 00 00 00 00 00 00 00 00" 43 | }, 44 | { 45 | "remark": "Add entry jump to OCBB", 46 | "offset": "0xB8B25C", 47 | "size": 4, 48 | "prev_data": "74 9E 01 00", 49 | "patch": "74 D1 01 00" 50 | }, 51 | { 52 | "remark": "Add entry jump to health", 53 | "offset": "0xB8B470", 54 | "size": 4, 55 | "prev_data": "7C C8 01 00", 56 | "patch": "5C D1 01 00" 57 | }, 58 | { 59 | "remark": "Add entry jump to OCSD", 60 | "offset": "0xB8B4C4", 61 | "size": 4, 62 | "prev_data": "C8 CE 01 00", 63 | "patch": "6C D1 01 00" 64 | }, 65 | { 66 | "remark": "Add entry jump to fan", 67 | "offset": "0xB8B5A4", 68 | "size": 4, 69 | "prev_data": "5C D1 01 00", 70 | "patch": "64 D1 01 00" 71 | } 72 | ] 73 | -------------------------------------------------------------------------------- /patches/279/patches.md: -------------------------------------------------------------------------------- 1 | # Patches 2 | To the best of my ability, I've documented the patched bytes included in the patch_userland.json file below. 3 | 4 | ... coming soon! mostly, however, it matches 273's patches. 5 | -------------------------------------------------------------------------------- /patches/279/readme.md: -------------------------------------------------------------------------------- 1 | # iLO 2.79 Patch 2 | 3 | This patch patches the signature checking in the kernel + bootloader (just like 250/), as well as applies modifications to the iLO to enable access to `health` calls. 4 | 5 | HOWEVER! HPE has REMOVED all of our useful utilities in iLO 2.78. So, this patch is dead for now. 6 | -------------------------------------------------------------------------------- /patches/latest: -------------------------------------------------------------------------------- 1 | 277 2 | -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | keystone-engine==0.9.2 2 | paramiko==2.9.2 3 | -------------------------------------------------------------------------------- /research/2022-02-15-initial-findings.md: -------------------------------------------------------------------------------- 1 | # 2022-02-15: Initial Findings 2 | 3 | ## First Glance 4 | I begun my work reading through the iLO4 Toolbox docs & research papers. At first, I didn't actually realize the scripts from iLO4 toolbox existed (would have helped if I read the reddit thread), so I was splitting up binary files into their composite images by hand ... a lot of fun! Unfortunately, since the ELFs were compressed, splitting them by hand doesn't really work. 5 | 6 | It took me a while to realize that though - I was pretty confused when the extracted ELF was missing bytes haphazardly within the header. Turns out there isn't some magic special ELF parser they use, they just compress the entire binary. 7 | 8 | Here's a snippet of my very confused notes: 9 | ``` 10 | Genuine firmware starts with signatures: 11 | HP Signed File Header 12 | certificates 13 | HPImage blob 14 | in bytes 0-1b1b 15 | this can be deleted to start with "ILO4 v" text. 16 | 17 | After trimming, payload is 1000000(h) long 18 | 19 | Inside payload, multiple code sections 20 | the first: 440(h) long (0-43F) (kernel main) 21 | the second: EEFBC0(h) long (440-EEFFFF) (lots to unpack ...) (userland) 22 | the third: 110000(h) long (EF0000-FFFFFF) (few changes here) (kernel recovery) 23 | 24 | each payload has a header & is able to be compressed ... 25 | 26 | a header: 27 | 440h long 28 | 4 bytes: ilo magic string (4 bytes) (always "iLO4") 29 | 28 bytes: build version string (" v 2.73.2 11-Feb-2020"), truncated with 1A00 30 | 2 bytes: uint32 w/ 'type' 0x0800 31 | 2 bytes: uint32 w/ compression_type 0x0010 32 | 4 bytes: unknown field 0x25100000 33 | 4 bytes: unknown field 0xa66a1000 34 | 4 bytes: decompressed size (uint32) = 24026548 (doesn't change / doesn't matter?) 35 | 4 bytes: raw size / compressed size (uint32) = 13761901 (changes 30-33h!) (is the total byte size from header start - start of final pad) 36 | 4 bytes: load address (uint32) = 0xFFFFFFFF 37 | 4 bytes: unknown field 0x00000000 38 | 4 bytes: unknown field 0xFFFFFFFF 39 | 200 bytes: signature (doesn't have to change) 40 | 200 bytes: padding (filled with 0xFF..) 41 | 42 | 43 | from original 273 44 | compressed size D1FD6D raw size 16E9DB4 45 | D1F92D long from elf start to start of padding 46 | EEF780 with pad 47 | D1FD6D 48 | 49 | from fan 273 50 | compressed size D1FCEA raw size 16E9DB4 51 | D1F92D long from start - start of final pad 52 | this value isn't correct for some reason ...? not sure why it was modified... 53 | D1FD6D long 54 | 55 | 56 | last block 57 | 75ED9 long in original 58 | 59 | ELF Header: 60 | 7F 45 4C 46 01 01 01 60 0F F5 02 00 28 00 50 0D 34 00 03 94 FD 3B 6E 01 00 0C 17 00 0B 20 FF 00 72 02 28 00 74 02 73 B7 61 | 7F 45 4C 46: magic 62 | 01: ei_class (32bit) 63 | 01: ei_data (little-endian) 64 | 01: ei_version (elf 1) 65 | 60: ei_osabi (?? ) 66 | 0F: ei_abiversion 67 | F5: ei_pad (should be zero filled -- seems that we skip 6 bytes here 00 00 00 00 00 00 00 -> F5) 68 | 02 00: e_type (executable file) 69 | 28 00: e_machine (ARM) 70 | // 50 0D 34 00: e_version entirely omitted? (should just be 1) 71 | 50 0D: e_entry (shortened to 2 byets / should be 4?) 72 | 34 00: e_phoff 73 | ``` 74 | 75 | One thing that stands out in here, however, is that there's some weird behavior from the ilo4_toolbox re-packer: 76 | it doesn't seem to adjust the iLO4 header to contain good values for the uncompressed-size / compressed-size of the binaries. This ended up causing some errors in the extract scripts when I had to retool them to work with the fan-commands repacked binary. 77 | 78 | 79 | ## Getting iLO4 Toolbox Running 80 | If we use the extract tool in iLO toolbox, we get something like this: 81 | ``` 82 | python scripts/iLO4/ilo4_extract.py ilo4_273_stock.bin extract 83 | bootloader.bin cert0.x509 elf.bin elf.sig kernel_main.bin kernel_main.sig kernel_recovery.raw 84 | bootloader.hdr cert1.x509 elf.hdr firmware.map kernel_main.hdr kernel_recovery.bin kernel_recovery.sig 85 | bootloader.sig cert2.x509 elf.raw hpimage.hdr kernel_main.raw kernel_recovery.hdr sign_params.raw 86 | ``` 87 | which provides us a pretty good baseline. We're only ever going to deal with kernel_main.bin and elf.bin -- that's the kernel and userland code. We'll have to move around some offsets for these two binaries, but I diff'd the .fancommands payload compared to to the original 273.bin and found the other bytes didn't change. (afterthought: technically, we patch the bootloader too, but it doesn't change in between releases) 88 | 89 | We can also use the dissection ruby script to generate IDA configs. This works terrible on Linux but I run Ida on windows anyway: 90 | ``` 91 | gem install bindata metasm 92 | scripts/iLO4/dissection.rb extract/elf.bin 93 | ``` 94 | That gives us an individual loader + script + module to prepare the memory perspective as seen by each process. This is extremely useful if we have calls that jump between loaded libraries (for instance, calling libc, etc, whose position might change between releases). However, for general analysis, its not super necessary and its easier to look at a regular Ida disassembly of elf.bin. Just know that some of the function jumps & memory calls are gonna be wrong and require adjustment. 95 | 96 | ## Disassemble 273.bin.fancommands 97 | I needed to be able to diff the changes made in the fan commands binary in order to start figuring out specific patches. However, the ilo4_extract script isn't really built to handle the packed binaries. It requires a header and signatures and a bunch of other junk. I tweaked the script (/misc/extract-after-compile.py) and I was able to get an extracted elf.bin out of 273.bin.fancommands 98 | _NB: I had to tweak around with the binary a lot to get it to decode correctly ... specifically, I added some bytes to the beginning of the header (01 00 00 00 29 32 EC AE CC 69 D8 43 BD 0E 61 DC 34 06 F7 1B 00 00 00 00) and had to adjust the size right before the ELF and within the iLO4 header. Hopefully nobody will have to replicate this work, but for reference._ 99 | 100 | Once I had a working elf.bin from fancommands, I was able to start working on figuring out the changes. Here's /u/phoenixdev's notes that helped me understand the changes I was seeing: 101 | 102 | ``` 103 | But the problem as of late is how to get interprocess communication working between the different pieces of the puzzle. The SSH app uses registered service calls to the Command Line Interface (CLI) app, which can simply use standard out (stdout) to send data back to the SSH session (or to some serial connector). The "health" and "fan" commands (along with two other commands which aren't as useful) live in the Health app and are registered as services that any other app can call to. The result of these commands is also printed out via stdout. 104 | 105 | That's all background info. Now what has been accomplished so far is that I have renamed one command in the CLI program ("null_cmd", you use it all the time, don't you?) to "fan" and created a function that passed the arguments to the Health app's "fan" service. This enables me to use all of the "fan" command options, with one caveat. I don't get to see the output. I guess that different programs don't tie their stdouts together in iLO; only the CLI app somehow got direct access to writing to SSH. 106 | 107 | There are three remaining steps: The first is to create a new service inside of the CLI app so that any app can eventually write to stdout. The second is to hijack the health app's printf function and redirect it to the new service. Finally, hack one more command ("vsp/r" - does the same exact thing as "vsp") and redirect it to the "h" command. 108 | ``` 109 | 110 | Onto [Reproducing v2.73](2022-02-16-reproducing-273.md)! 111 | -------------------------------------------------------------------------------- /research/2022-02-16-reproducing-273.md: -------------------------------------------------------------------------------- 1 | # 2022-02-16: Reproducing 2.73 2 | I write patches to fully reproduce /u/phoenixdev's patched iLO 2.73 3 | 4 | Once I had the original v2.73 binary and phoenixdev's, finding the differences was pretty easy. I first ran bindiff, and was mostly confused by the results. But, since we're looking at byte-sized code injections, it's a lot easier to just diff the hexdumps. 5 | 6 | Here's a quick summary of the first things I noticed: 7 | - We have some new code with 4 entrypoints, likely related to the 4 new functions 8 | ![New function entrypoints](img/new-function-entrypoints.png) 9 | - We have a bunch of strings ("null_cmd", etc) that have changed values to our new functions (4 new strings) 10 | - There's some random 4 byte words that have changed in the CLI's .data file (4 of them!) 11 | - .health has had one function completely branched into a second function 12 | - The second function in .health seems to replace otherwise dead code, and contains some unknown code w/ a ref to "VSPChannel" 13 | - There's a change in the firmware update manager(? FUM) that bypasses a signature check during firmware updates 14 | 15 | I didn't delay too much here: I took the offsets of each injection, and noted the original bytes and the new bytes. I wanted to produce v2.73 in a consistent manner first, so I took them as-is without worrying too much about changing any offsets / relative calls. I saved these patches into a JSON file for later automatic building. 16 | 17 | ## Patch System 18 | There's a patch system built into ilo4_toolbox to allow their code injection example to work. However, it was pretty messy and not super extensible. So, I spun up a Git repo (you're on it!) and organized ilo4_toolbox's code into a submodule. Then, I rewrote their patching code into something that can take patches from a JSON file. I'm not really a python dev, but I suffered for a short script since the original was all Python. 19 | 20 | ## End of Day Products 21 | I've fully produced a byte-for-byte replica of phoenixdev's original firmware, using explicitly patches that have been documented in patches/273/patches.md. There's still more work to be done in terms of researching each patch to replicate it on the latest iLO version, but that's for tomorrow. 22 | 23 | Onto [Docs](2022-02-17-docs.md)! 24 | -------------------------------------------------------------------------------- /research/2022-02-17-docs.md: -------------------------------------------------------------------------------- 1 | # 2022-02-17: Docs 2 | I work up a build system to transparently build iLO binaries & read a bunch of assembly. 3 | 4 | Now that I had an identical file for v2.73, I knew I was in a good place to work on migrating v2.79. However, before I could, I needed to actually understand the implications of the code within v2.73, so I could adjust relative calls as necessary. I got distracted a lot here looking into random stuff, so pardon the mess. Here's some snippets from my findings: 5 | 6 | _NB: most of the useful info here is also written in the patches/273/patches.md file!_ 7 | 8 | ``` 9 | shell commands are stored in struct array -- see: 10 | 11 | 00000000 shell_cmd struc ; (sizeof=0x1C, mappedto_3) 12 | 00000000 ; XREF: .ConAppCLI.elf.data:0220D5E4/r 13 | 00000000 addr1 DCD ? 14 | 00000004 addr2 DCD ? ; offset (00000000) 15 | 00000008 addr3 DCD ? ; offset (00000000) 16 | 0000000C addr4 DCD ? ; offset (00000000) 17 | 00000010 num0 DCD ? ; offset (00000000) 18 | 00000014 num1 DCD ? ; offset (00000000) 19 | 00000018 num2 DCD ? ; offset (00000000) 20 | 0000001C shell_cmd ends 21 | 0000001C 22 | 54 shell commands defined 23 | order appears to match strings in string list 24 | 25 | a case study for 'help' command: 26 | help is #7 (indx 6) 27 | 4C FA 09 00 - addr1 (0009FA4C) 28 | 28 8B 01 00 - entry (00018B28) 29 | A4 3F 01 00 - addr3 (00013FA4) 30 | A4 50 01 00 - addr4 (000150A4) 31 | 32 | entrypoint is @ 33 | .ConAppCLI.elf.text:0216EB28 (CLI_helpHandler) 34 | .ConAppCLI.elf.text begins @ 02166000 35 | virtual memory begins at 0x00010000 so 36 | entry @ 0x18B28 - 0x10000 + 0x02166000 = 0x216EB28 = CLI_helpHandler 37 | 38 | addr1 = points to name string 39 | addr2 = points to entrypoint fn 40 | addr3 = points to `version help` function 41 | addr4 = points to `help help` function 42 | ``` 43 | This is the shell command data stored in .ConAppCLI.elf.data - basically a big array of commands that each have a pointer to their name, entrypoint, help, and version data. This makes sense, since our patch that shifts the entrypoint changes these bytes 4x, once for each function call. Specifically, as one might imagine, it shifts `addr2` which is the entrypoint. Once I figured out how the pointers worked in virtual memory (they're relative to the running memory, which would make sense & is a lot easier to view in the dissected view of the task from ilo4_toolbox!) it was pretty easy to figure out how we're adjusting them to point to our new entrypoints. 44 | 45 | ``` 46 | .health call traced back; uses jumptable w/ 5/6/7/8 value to call fan 47 | ``` 48 | In our entrypoints, we had some magic numbers 5/6/7/8 that was used to setup the fan/ocsd/health/ocbb calls. Turns out that .health has a big jump table / switch statement and these correspond (I guess probably to an enum) to call different functions. No surprises here, but I dug it up because I was curious what the magic numbers came from. (afterthought: this was also important to verifying the jumptable didn't change order etc between versions) 49 | 50 | I did some additional digging into random stuff to figure out how arguments were being passed. I didn't really make too much progress, but I learned a good amount about the codebase: 51 | ``` 52 | let's trace another function: 53 | oemhp_ping takes in a single arg: 54 | "oemhp_ping 127.0.0.1" 55 | and reports a success string 56 | (it also can be used more complexly: 57 | oemhp_ping [-s size] [-c count] [-i interval] address 58 | 59 | the string is defined in text at 021F5AC4 60 | giving a relative offset of: 61 | 0x21F5AC4 - 0x2166000 + 0x10000 = 0x9FAC4 (C4 FA 09 00) 62 | this reveals the command to exist @ .ConAppCLI.elf.data:0220D868 63 | and its entrypoint is 64 | 80 A0 01 00 -> 0x01A080 + 0x2166000 - 0x10000 = 0x2170080 65 | 66 | (at this point i remembered we can also use the CLI_...handler convention to find the function call) 67 | 68 | .ConAppCLI.elf.text:02170080 69 | allocates less space on the stack (#0x100) 70 | Runs 78 01 1F E5 71 | 72 | at this point, let me install the arm toolchain quickly to help me debug some of these lines 73 | https://web1.foxhollow.ca/?menu=centos7arm 74 | 75 | here's a usecase: 76 | echo "0: 25 10 d5 e5" | xxd -r > a.bin && arm-none-eabi-objdump -D -m arm -b binary a.bin 77 | -> 0: e5d51025 ldrb r1, [r5, #37] ; 0x25 78 | 79 | Runs 80 | 0: e51f0178 ldr r0, [pc, #-376] 81 | anyway: 82 | allocates 0x100 on stack 83 | saves R0 (R5) and calls sub_2177F9C 84 | saves result (R6), calls sub_2198D74 w/ R1 string (some kind of logging?) 85 | loads 0x1570 to R0 86 | looks like a null pointer test 87 | 88 | R6 is the return value from sub_2177F9C 89 | (not really sure what this is .... given the offset, probably some kind of 90 | object? maybe a context-preserving obj) 91 | R1 = R6+0x1570 92 | R0 = SP 93 | R0 = initial R0 94 | R1 = "/map1" string - base address... like a regkey? 95 | (can show/set/etc) 96 | calls sub_2173B98 (change targets) -- this would 97 | be the equivalent to `cd /map1` 98 | 99 | R0 = R5 (initial R0) 100 | 101 | call sub_216DB3C ( "Ping Target") 102 | 103 | grabs context w/ context_grab 104 | accesses CTX+0x1780 -> +0x28 = R1 105 | nested structure 106 | 107 | 0x1780 contains a pointer to unk_struct 108 | unk_struct has a value at 0x28 109 | 110 | if R1 is nonzero 111 | calls value at R1 ... 112 | else 113 | stores 2 @ CTX+0x28 114 | stores 0xA @ CTX+0x60 115 | stores 0xB @ CTX+0x98 116 | stores 0xB @ CTX+0x04 117 | calls display_stats, which populates based on CTX ... makes sense 118 | ``` 119 | 120 | The train of thought here is pretty scattered. I'm tracing through a random CLI method line-by-line trying to figure out how it initializes and parses arguments. The most interesting thing I found here is that there's an object that has specific commands attached to our `context` (more on that below). Here's a rough writeup: 121 | ``` 122 | CTX { 123 | ... 124 | 0x1780 cmdRef { 125 | 0x0 cmd ptr (#0) (used by ShowTarget) 126 | 0x28 cmd ptr (#40) (used by PingTarget) 127 | 0x30 cmd ptr () (used by DeleteSSHKeyTarget) 128 | 0x34 cmd ptr () (used by ResetHotkeysTarget) 129 | 0x2C cmd ptr (#44) (used by loadSSHKeyTarget) 130 | 0xnn undefinedcmd = 0 131 | } 132 | } 133 | ``` 134 | 135 | but context??: 136 | CLI commands open with a call to something that I call 'context_grab'. It passes in R0 and gets a struct back with some data. I figured out that the structure for that looks like this: 137 | ``` 138 | context_grab(data) { 139 | some_table = []; 140 | index_of(data) { 141 | for(int i = 0; i < 6; i++) { 142 | if(some_table[i][4] == data) 143 | return i; 144 | } 145 | return 6; 146 | } 147 | var indx = index_of(data); 148 | if(indx > 6) return 0; 149 | return some_table[indx] 150 | } 151 | ``` 152 | Essentially, it just loops through the struct and finds a value based on some unique `data` value. This is R0 within the function calls. The 'some_table' struct is my next search. It seems to be allocated a pointer within the .data section, but its just zero'd out. Realistically, it should be in .bss since its an uninitialized global. Not sure what happened there. Anyway, its an array that gets allocated at runtime so not much to dissect. I used some of the construction code to get a rough outline: 153 | ``` 154 | ConnectionRecords[] = [ 155 | Record Ptr { 156 | 0x0: value of UNK+0x108 157 | 0x4: ??? some kind of unique identifier? (used by context_grab) 158 | 0x8: PostSemaphore 159 | 0xC: ReadSemaphore 160 | 0x14: 0 161 | 0x18: 162 | 0x24: 0 163 | 0x1C: 0 164 | 0x28: 0 165 | 0x60: 0 166 | 0x98: 0 167 | 0x264: ? 168 | 0x1164: (init) 169 | 0x126C: (init) 170 | 0x1570: ? 171 | } 172 | ] 173 | ``` 174 | This ConnectionRecord seems to have a fixed max length of 6. I noticed that after 5 SSH clients, I can't connect to the server anymore. So these connectionrecords get allocated individually for SSH clients (either I have an off-by-one error in my reading, or there's another permanently open ConnectionRecord that might correspond to the iLO's serial shell). 175 | 176 | So, the start of each CLI function: 177 | has some R0, uses context_grab to get the pointer to the ConnectionRecord for the relevant connection. 178 | They use the ConnectionRecord for a few things - some stuff that looks suspiciously like string args! 179 | ``` 180 | calls dword_38D8F54 (libintegrity) w/ (SP, 0x200) 181 | access connectionRecord[0x1570] & pass it to R1 182 | sub_39088D4(SP+0x900, connectionRecord[0x1570]) // this ends up being SP-0x100 based on entry since we shift SP 183 | this is some libc call - it checks == 3 and performs operations ... 184 | 185 | sub_3908800(connectionRecord[0x264]) -> strlen 186 | if(length = 0) -> prints full help 187 | 188 | sub_3908800(connectionRecord[0x364]) -> strlen 189 | if(length = 0) -> jumps down 190 | calls dword_38D8F54(SP+800, 0x40) 191 | ``` 192 | Could connectionRecord contain the last inputted string, already spaced out? i.e. 193 | first argument @ [0x264], second argument @ [0x364]? 194 | 195 | Certainly possible, but it wasn't used in phoenixdev's code so I tried my best to ignore it. Their code relies on some magic offset from r7, but I have no idea where r7 came from since its not initialized within the function. It would break caller convention to have input data in r7 when the function is called, though that might not matter here since our CLI functions are really an 'inner' / anonymous function of sorts. It'd be worthwhile to find the triggerer that actually calls the function from the lookup table. But I haven't found / looked too hard yet. It might define r7 to be something that makes this make more sense. 196 | 197 | Onto [Building v2.79](2022-02-18-building-279.md)! 198 | -------------------------------------------------------------------------------- /research/2022-02-18-building-279.md: -------------------------------------------------------------------------------- 1 | # 2022-02-18: Building v2.79 2 | I write patches for v2.79 3 | 4 | Before I dig into this, I looked at the changes between v2.73 and v2.79: 5 | ``` 6 | Version:2.79 (25 Nov 2021) 7 | Java certificate for IRC shows expired. 8 | "Mark as Repaired" button for alerts in IML UI page is greyed out. 9 | iLO GUI doesn't show the time adjusted to the timezone. 10 | General Exception encountered while launching Java IRC. 11 | iLO 4 sends multiple unwanted SNMP traps with specific ID in a day. 12 | SNTP settings couldn't be configured in the GUI with iLO 4 v2.77 and above. 13 | iLO Events submitted by Direct Connect devices arrive in HPE backend application of Remote Support Data Center with incorrect GUIDs. 14 | 15 | Version:2.78 (7 May 2021) 16 | - Updated Jquery library to 3.5.1 17 | - Updated Openssl library to OpenSSL 1.0.2x 18 | - eRS enhanced to support generic service event 1000 for critical events 19 | - IML reports fan modules failed for D3000 only after server reboot 20 | - eRS service event added for Critical events like System Power Fault Detection 21 | - Security fixes 22 | - Added a Content Security Policy( CSP) to harden the web interfaces 23 | - Enhanced Input validation for user controlled data 24 | - Fixes for multiple security vulnerabilities 25 | 26 | Version:2.77 (17 Dec 2020) 27 | Added support to display login banner SSH login 28 | Potential vulnerabilities in network stack. Click here to know more about the Security Vulnerabilities. 29 | Active directory test may fail during LDAP authentication. 30 | 31 | Version:2.76 (4 Nov 2020) 32 | Users can view and modify the System thermal configuration settings using iLO interfaces. 33 | On a server that is registered for Remote Support, if you download the Active Health System Log when Active Health System reporting information is being sent to Hewlett Packard Enterprise, the downloaded file might contain only baseline information. 34 | The Smart Storage Battery might be listed on the System Information > Network page in the iLO web interface. 35 | 36 | Version:2.75 (18 Aug 2020) 37 | Potential Ripple20 vulnerabilities affecting the TCP/IP stack. 38 | 39 | Version:2.74 (16 May 2020) 40 | iLO 4 does not enforce the requirement for strong host keys when the Enforce AES/3DES Encryption and FIPS mode settings are enabled 41 | 42 | - doesn't look like anything that will burn us? 43 | ``` 44 | Actually writing the patches for v2.79 was very easy. I used my AoBs (these are best documented in patches/277/patches.md) to find each function and only had to modify offsets. None of the bytes needed to change, although that took some work to realize. (afterthought: this is actually false, we'll see that in the next page). I scanned for AoBs and replaced the functions. 45 | 46 | I had to do some double checking to make sure command order / etc didn't change -- turns out it seems to never change between versions. I flashed the iLO with my v2.79 firmware and it was pretty good (it booted, anyway): 47 | ``` 48 | notes: 49 | fan didn't come down after flashing + iLO restarting 50 | weird fan behavior during boot sequence? fans not running during thermal testing ... 51 | `help` works fine on SSH, but fan command causes a stall 52 | stall eventually trips a watchdog and makes the iLO reset 53 | after reset, the web portal never comes back up but SSH does? kinda strange 54 | my assumption: patch on stdout redirect didn't apply correctly causing the hanging, but otherwise the firmware is ok 55 | validating this by removing the stdout patch entirely and testing 56 | ``` 57 | ``` 58 | after removing stdout patch: 59 | fans come down after flashing 60 | all of this behavior makes a lot of sense if the internal service is calling `health` and its erroring. the controller can't get the fan speeds up during boot nor after flashing, making them awkwardly hang 61 | 62 | 63 | anyway - now the health service is ok and running the fans properly via iLO. however, im not getting expected output 64 | from my commands. i think something is wrong with the arg processor so i'll have to test that next. 65 | ``` 66 | This result was actually what prompted me to dig into the arg processing code in the last page (I'm writing this a bit out of order). 67 | 68 | After a long day of digging around, I thought that the arg parser might be fine but the switch statement might have been shuffled. Essentially, I was calling the wrong functions in .health but otherwise parsing arguments correctly. 69 | 70 | This was when I, with much disappointment, realized that the `fan` CLI tool (and the other health/ocsd/ocbb tools) were entirely removed from v2.79. To emphasize how much code was missing that I didn't realize, here's the graph from the fan tool that is entirely absent in v2.79: 71 | ![.health Fan Function](img/health_fan_function.png) 72 | 73 | Anyway. I moved my offsets to v2.78 and got that working -- still no dice. I liked v2.78 originally because I glanced at the included strings in the binary -- which included all the help text for the `fan` CLI tool. However, the actual code to run it is gone and the strings have no references. Oops. I loaded up v2.77 and was pleased to find the fan CLI tool in all its glory. Time to move my patches for now. Hopefully we can return to looking at v2.78+, but for now I'm getting out while I'm ahead and patching v2.77 and calling it a day. 74 | 75 | Onto [v2.77](2022-02-19-onto-277.md)! 76 | -------------------------------------------------------------------------------- /research/2022-02-19-onto-277.md: -------------------------------------------------------------------------------- 1 | # 2022-02-19: Building v2.77 2 | 3 | Building v2.77 was pretty easy ... at this point, I've written offsets for v2.73, v2.79, and v2.78. I was pretty used to it. 4 | 5 | I booted up and had the same issues with stdout -- the iLO hung if I called any of my fan commands. I stripped out the stdout function calls, and was very happy to see the `fan` commands WORKING! All that remains is to patch stdout. 6 | 7 | ## Stdout fixes 8 | I wasn't surprised to see the stdout patch was breaking. It was the part of the code I looked at the least. I dug around for a while trying to find why the references would be messed up and break the stdout code. Ultimately, the solution was obvious and I documented it in patches/277/patches.md. 9 | 10 | I didn't take very good notes here, so I don't have much to share. However, with the stdout bugs patched ... 11 | 12 | it works! 13 | 14 | 15 | ## Closing Thoughts 16 | This ends my (maybe first/only, maybe just first) research sprint into this project. I'll be releasing v2.77 to the community. 17 | 18 | Here's some stuff that needs additional work: 19 | I'd love to patch the SSH bug where output is only shown on the first SSH shell. I'm pretty sure this is doable and depends on my research into the Connection Records previously done. Hopefully I can make something without too much work 20 | And patching v2.78+ ... this is a monumentally large project and not really worth it to me. So we'll see. 21 | -------------------------------------------------------------------------------- /research/img/273-277-vspchannel-comparison.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/273-277-vspchannel-comparison.png -------------------------------------------------------------------------------- /research/img/conapp-closing-connection.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/conapp-closing-connection.png -------------------------------------------------------------------------------- /research/img/conapp-get-current-context.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/conapp-get-current-context.png -------------------------------------------------------------------------------- /research/img/health-ipc-call.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/health-ipc-call.png -------------------------------------------------------------------------------- /research/img/health-jump-table.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/health-jump-table.png -------------------------------------------------------------------------------- /research/img/health_fan_function.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/health_fan_function.png -------------------------------------------------------------------------------- /research/img/keypatch-function-entrypoints.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/keypatch-function-entrypoints.png -------------------------------------------------------------------------------- /research/img/new-function-entrypoints.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/new-function-entrypoints.png -------------------------------------------------------------------------------- /research/img/patch-for-273-identical.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/patch-for-273-identical.png -------------------------------------------------------------------------------- /research/img/unkn-libc-call.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/unkn-libc-call.png -------------------------------------------------------------------------------- /research/img/vspchannel-logging-ipc.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/kendallgoto/ilo4_unlock/120ed240377c1480358e94a03707871f434f38f8/research/img/vspchannel-logging-ipc.png -------------------------------------------------------------------------------- /research/readme.md: -------------------------------------------------------------------------------- 1 | # Research Notes 2 | 3 | Please note: I took pretty hasty & quick notes while I worked. I've try to organize them more clearly for the benefit of future researchers. 4 | 5 | A disclaimer: I'm not professionally trained in reverse engineering, assembly, or ARM code. I've explored all three areas, but not with great depth. I'm a student & run a homelab in my bedroom, creating my intrigue in working on this. I had many firsts along the way, dug myself into many holes, and wasted lots of time running in circles. 6 | 7 | - [2022-02-15: Initial Findings](2022-02-15-initial-findings.md) 8 | - [2022-02-16: Reproducing v2.73](2022-02-16-reproducing-273.md) 9 | - [2022-02-17: Docs](2022-02-17-docs.md) 10 | - [2022-02-18: Building v2.79](2022-02-18-building-279.md) 11 | - [2022-02-19: Onto v2.77](2022-02-19-onto-277.md) 12 | -------------------------------------------------------------------------------- /scripts/aterfax-silence-dl380pG8-screen.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | # 3 | # Provided by https://github.com/Aterfax in PR #3 4 | # Set up using Cron rules (crontab -e) 5 | # @restart /home/whatever/my-start-script.sh # trigger script at bootup 6 | # */6 * * * * /usr/bin/screen -S my-screen-name -X stuff 'fan info'`echo -ne '\015'` # send fan info regularly to keep alive 7 | # 8 | # This setup is tuned for my DL380p Gen8 LFF server with additional PCIe cards. 9 | # We establish a screen session, SSH to iLO4 and "stuff" it with commands. 10 | # This preserves the first TTY in the screen session connected with iLO4 11 | # so further command input/output can be visualised. 12 | # We're avoiding the "output only goes in the first SSH session/TTY" bug! 13 | # 14 | # SSH is reliant on you using SSH keys and having these setup already. 15 | 16 | IP=X.X.X.X # CHANGEME 17 | SCREEN_NAME=iLO4fansession 18 | 19 | IP=${IP} screen -dmS $SCREEN_NAME 20 | 21 | echo -e "Establishing SSH session inside screen." 22 | 23 | screen -S $SCREEN_NAME -X stuff 'ssh -t Administrator@${IP} -o LocalCommand="fan info"'`echo -ne '\015'` 24 | 25 | echo -e "Sleeping for 5 seconds." 26 | 27 | sleep 5 28 | 29 | echo -e "Resuming fan commands." 30 | 31 | # `echo -ne '\015'` emulates pressing the Enter key. 32 | 33 | # Set fan minimums. 34 | screen -S $SCREEN_NAME -X stuff 'fan p 0 min 50'`echo -ne '\015'` 35 | screen -S $SCREEN_NAME -X stuff 'fan p 1 min 50'`echo -ne '\015'` 36 | screen -S $SCREEN_NAME -X stuff 'fan p 2 min 50'`echo -ne '\015'` 37 | screen -S $SCREEN_NAME -X stuff 'fan p 3 min 65'`echo -ne '\015'` 38 | screen -S $SCREEN_NAME -X stuff 'fan p 4 min 65'`echo -ne '\015'` 39 | screen -S $SCREEN_NAME -X stuff 'fan p 5 min 65'`echo -ne '\015'` 40 | 41 | # Ignore HD Cage sensor due to non-HP branded HDDs. 42 | screen -S $SCREEN_NAME -X stuff 'fan t 12 off'`echo -ne '\015'` 43 | 44 | # Ignore PCIe slots cage 1 sensors? 45 | screen -S $SCREEN_NAME -X stuff 'fan t 32 off'`echo -ne '\015'` 46 | screen -S $SCREEN_NAME -X stuff 'fan t 33 off'`echo -ne '\015'` 47 | screen -S $SCREEN_NAME -X stuff 'fan t 34 off'`echo -ne '\015'` 48 | screen -S $SCREEN_NAME -X stuff 'fan t 35 off'`echo -ne '\015'` 49 | screen -S $SCREEN_NAME -X stuff 'fan t 36 off'`echo -ne '\015'` 50 | screen -S $SCREEN_NAME -X stuff 'fan t 37 off'`echo -ne '\015'` 51 | screen -S $SCREEN_NAME -X stuff 'fan t 38 off'`echo -ne '\015'` 52 | 53 | # Ignore PCIe slots cage 2 sensors? 54 | screen -S $SCREEN_NAME -X stuff 'fan t 52 off'`echo -ne '\015'` 55 | screen -S $SCREEN_NAME -X stuff 'fan t 53 off'`echo -ne '\015'` 56 | screen -S $SCREEN_NAME -X stuff 'fan t 54 off'`echo -ne '\015'` 57 | screen -S $SCREEN_NAME -X stuff 'fan t 55 off'`echo -ne '\015'` 58 | screen -S $SCREEN_NAME -X stuff 'fan t 56 off'`echo -ne '\015'` 59 | screen -S $SCREEN_NAME -X stuff 'fan t 57 off'`echo -ne '\015'` 60 | screen -S $SCREEN_NAME -X stuff 'fan t 58 off'`echo -ne '\015'` 61 | screen -S $SCREEN_NAME -X stuff 'fan t 59 off'`echo -ne '\015'` 62 | screen -S $SCREEN_NAME -X stuff 'fan t 60 off'`echo -ne '\015'` 63 | screen -S $SCREEN_NAME -X stuff 'fan t 61 off'`echo -ne '\015'` 64 | screen -S $SCREEN_NAME -X stuff 'fan t 62 off'`echo -ne '\015'` 65 | screen -S $SCREEN_NAME -X stuff 'fan t 63 off'`echo -ne '\015'` 66 | 67 | -------------------------------------------------------------------------------- /scripts/cf-dynamic-fans.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | ### 4 | ### This script adjusts the fan speed based on the highest temperature 5 | ### Use with https://github.com/kendallgoto/ilo4_unlock/blob/main/scripts/ja-silence-dl20G9.sh to unlock the iLO4 fan control and run the original script first to establish a screen session. 6 | ### Then this script can run via a .timer unit to adjust the fan speed every x seconds/minutes. 7 | ### 8 | ### Required packages: freeipmi, lm-sensors, jq, screen 9 | ### freeipmi might need additional configuration if the os you're executing this on isn't the same as the server you're trying to control. 10 | ### You can also use ipmitool instead of freeipmi, but you'll need to adjust the script accordingly. I had issues with ipmitool correctly formatting how I wanted things, ipmi-sensors was much easier to work with. 11 | ### 12 | ### Example .timer unit: 13 | ### [Unit] 14 | ### Description=Adjust fan speed 15 | ### 16 | ### [Timer] 17 | ### OnBootSec=10s 18 | ### OnUnitActiveSec=1m 19 | ### Unit=fan_autocontrol.service 20 | ### 21 | ### [Install] 22 | ### WantedBy=timers.target 23 | ### 24 | ### Example .service unit: 25 | ### [Unit] 26 | ### Description=Adjust fan speed 27 | ### 28 | ### [Service] 29 | ### Type=oneshot 30 | ### ExecStart=/path/to/fan_autocontrol.sh (name of this script) 31 | ### 32 | ### [Install] 33 | ### WantedBy=multi-user.target 34 | ### 35 | 36 | 37 | # Configuration 38 | SCREEN_NAME="iLO4fansession" 39 | MIN_TEMP=45 # Lowered the minimum temperature to 45 degrees Celsius 40 | MAX_TEMP=67 41 | MIN_SPEED=40 42 | MAX_SPEED=255 43 | TEMP_RANGE=$((MAX_TEMP - MIN_TEMP)) # 22 44 | SPEED_RANGE=$((MAX_SPEED - MIN_SPEED)) # 215 45 | 46 | adjust_fan_speed() { 47 | local TEMPERATURE=$1 48 | local FAN_GROUP=$2 49 | local SPEED 50 | 51 | if [ "$TEMPERATURE" -le $MIN_TEMP ]; then 52 | SPEED=$MIN_SPEED 53 | elif [ "$TEMPERATURE" -ge $MAX_TEMP ]; then 54 | SPEED=$MAX_SPEED 55 | else 56 | # Calculate speed based on the temperature 57 | SPEED=$(($MIN_SPEED + ($TEMPERATURE - $MIN_TEMP) * $SPEED_RANGE / $TEMP_RANGE)) 58 | fi 59 | 60 | # Apply the calculated speed to each fan in the group 61 | for FAN in $FAN_GROUP; do 62 | screen -S $SCREEN_NAME -X stuff "fan p $FAN max $SPEED"`echo -ne '\015'` 63 | done 64 | } 65 | 66 | # Read temperatures from sensors and IPMI 67 | CPU1_TEMP=$(sensors -Aj coretemp-isa-0000 | jq '.[][] | to_entries[] | select(.key | endswith("input")) | .value' | sort -rn | head -n1) 68 | CPU2_TEMP=$(sensors -Aj coretemp-isa-0001 | jq '.[][] | to_entries[] | select(.key | endswith("input")) | .value' | sort -rn | head -n1) 69 | HIGHEST_TEMP_IPMI=$(ipmi-sensors -t Temperature --ignore-not-available-sensors --comma-separated-output | awk -F, 'NR>1 && $4+0 == $4 {if ($4 > max) {max = $4}} END {print int(max)}') 70 | 71 | # Convert temperatures to integers and find the highest 72 | CPU1_TEMP=${CPU1_TEMP%.*} 73 | CPU2_TEMP=${CPU2_TEMP%.*} 74 | HIGHEST_TEMP_IPMI=${HIGHEST_TEMP_IPMI%.*} 75 | HIGHEST_TEMP=$((CPU1_TEMP > CPU2_TEMP ? CPU1_TEMP : CPU2_TEMP)) 76 | HIGHEST_TEMP=$((HIGHEST_TEMP > HIGHEST_TEMP_IPMI ? HIGHEST_TEMP : HIGHEST_TEMP_IPMI)) 77 | 78 | # Output the highest temperature 79 | echo "Temperatures:" 80 | echo "CPU1: $CPU1_TEMP°C" 81 | echo "CPU2: $CPU2_TEMP°C" 82 | echo "Highest IPMI: $HIGHEST_TEMP_IPMI°C" 83 | echo "Highest: $HIGHEST_TEMP°C" 84 | 85 | # Define fan groups based on your setup 86 | FAN_GROUP="0 1 2 3 4 5" # Example fan group 87 | 88 | # Adjust fan speeds based on the highest temperature 89 | adjust_fan_speed "$HIGHEST_TEMP" "$FAN_GROUP" 90 | -------------------------------------------------------------------------------- /scripts/djaenk-quiet-dl380pG8.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # I use this on my DL380p Gen8 running Proxmox VE 7.2. 4 | # The server has two of its eight SFF bays populated and is otherwise stock. 5 | # I consider this a safer solution than explicitly disabling sensors or 6 | # throttling fans because it reduces the minimum fan speed for an overreactive 7 | # sensor while keeping all other fan curves. I wouldn't say this silences the 8 | # server, but it does make it magnitudes quieter. Referenced from 9 | # https://www.reddit.com/r/homelab/comments/di3vrk/silence_of_the_fans_controlling_hp_server_fans/firx6op/ 10 | 11 | # Replace these values with those relevant to your iLO. Alternatively, 12 | # consider defining them with environment variables. 13 | 14 | IP=x.x.x.x 15 | USER='Administrator' 16 | PWD='password' 17 | OPT='-oKexAlgorithms=+diffie-hellman-group14-sha1' 18 | 19 | sshpass -p $PWD ssh ${OPT} $USER@$IP 'fan info' 20 | sshpass -p $PWD ssh ${OPT} $USER@$IP 'fan pid 47 lo 1600' 21 | 22 | # The script can be triggered on startup with a crontab. 23 | # While writing the cron job, a one liner can be used instead: 24 | # @reboot sshpass -p password ssh -oKexAlgorithms=+diffie-hellman-group14-sha1 Administrator@x.x.x.x 'fan pid 47 lo 1600' 25 | -------------------------------------------------------------------------------- /scripts/dl360gen9-silent.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # Variables 4 | ilo_user="#" # Replace with your iLO username 5 | ilo_pass="#" # Replace with your iLO password 6 | ilo_host="#" # Replace with your iLO hostname or IP address 7 | 8 | # Options to enable older key exchange and host key methods 9 | ssh_options="-o KexAlgorithms=diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 -o HostKeyAlgorithms=ssh-rsa,ssh-dss -o StrictHostKeyChecking=no" 10 | 11 | # Loop through the sensor numbers and send the command 12 | for sensor in {01..46} #set lo 1600 to all sensors (in my case 46 sensors) 13 | do 14 | sshpass -p $ilo_pass ssh $ssh_options $ilo_user@$ilo_host "fan pid $sensor lo 1600" 15 | done 16 | -------------------------------------------------------------------------------- /scripts/ja-silence-dl20G9.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | # 3 | # Modified from aterfax-silence-dl380pG8-screen.sh by https://github.com/Aterfax in PR #3 4 | # 5 | # Set up using Cron rules (crontab -e) 6 | # @reboot /home/whatever/my-start-script.sh # trigger script at bootup 7 | # */6 * * * * /usr/bin/screen -S iLO4fansession -X stuff 'fan info'`echo -ne '\015'` # send fan info regularly to keep alive 8 | # 9 | # This setup is tuned for my DL20 Gen 9 server with additional PCIe cards. 10 | # You should monitor your temps and your workload, but fans should still ramp up since this doesn't disable most sensors. 11 | # 12 | # We establish a screen session, SSH to iLO4 and "stuff" it with commands. 13 | # This preserves the first TTY in the screen session connected with iLO4 14 | # so further command input/output can be visualised. 15 | # We're avoiding the "output only goes in the first SSH session/TTY" bug! 16 | # 17 | # SSH is using SSH keys to connect in this example. Generate a key then add in iLO. 18 | 19 | IP=X.X.X.X # CHANGEME 20 | SCREEN_NAME=iLO4fansession 21 | SSH_USER=Administrator # You should set up a different user in iLO, no extra permissions are needed for the user. 22 | SSH_KEY=~/.ssh/foo # Set to the location of the SSH key for the above user. 23 | 24 | IP=${IP} screen -dmS $SCREEN_NAME 25 | 26 | echo -e "Establishing SSH session inside screen." 27 | 28 | while [ true ] 29 | do 30 | echo -e "Checking if ${IP} is up." 31 | ping -q -c 1 ${IP} &>/dev/null 32 | if [ $? -ne 0 ]; then 33 | echo "iLO is not responding. Reattempting in 30 seconds."; 34 | else 35 | break 36 | fi 37 | sleep 30 38 | done 39 | 40 | screen -S $SCREEN_NAME -X stuff "ssh -i ${SSH_KEY} -t ${SSH_USER}@${IP} -p 2222 -o PubKeyAcceptedKeyTypes=+ssh-rsa -o HostKeyAlgorithms=+ssh-dss -o KexAlgorithms=+diffie-hellman-group14-sha1 -o LocalCommand='fan info'"`echo -ne '\015'` 41 | 42 | echo -e "Sleeping for 5 seconds." 43 | 44 | sleep 5 45 | 46 | echo -e "Resuming fan commands." 47 | 48 | # `echo -ne '\015'` emulates pressing the Enter key. 49 | 50 | # Set fan minimums. 51 | screen -S $SCREEN_NAME -X stuff 'fan p 0 min 25'`echo -ne '\015'` 52 | screen -S $SCREEN_NAME -X stuff 'fan p 1 min 25'`echo -ne '\015'` 53 | screen -S $SCREEN_NAME -X stuff 'fan p 2 min 25'`echo -ne '\015'` 54 | screen -S $SCREEN_NAME -X stuff 'fan p 3 min 25'`echo -ne '\015'` 55 | 56 | 57 | # Ignore HD sensors due to non-HP branded HDDs. 58 | screen -S $SCREEN_NAME -X stuff 'fan t 3 off'`echo -ne '\015'` 59 | screen -S $SCREEN_NAME -X stuff 'fan t 19 off'`echo -ne '\015'` 60 | screen -S $SCREEN_NAME -X stuff 'fan t 20 off'`echo -ne '\015'` 61 | 62 | # Increase setpoint of PCIe sensors, otherwise fans will be minimum 30%. 63 | # 5500 sets a target of 55C after which the fans start ramping up. 64 | screen -S $SCREEN_NAME -X stuff 'fan pid 23 sp 5500'`echo -ne '\015'` 65 | screen -S $SCREEN_NAME -X stuff 'fan pid 25 sp 5500'`echo -ne '\015'` 66 | screen -S $SCREEN_NAME -X stuff 'fan pid 26 sp 5500'`echo -ne '\015'` 67 | -------------------------------------------------------------------------------- /scripts/kg-silence-dl380eG8.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | # 3 | # This file is part of the ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 4 | # Copyright (c) 2022 Kendall Goto. 5 | # 6 | # This program is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, version 3. 9 | # 10 | # This program is distributed in the hope that it will be useful, but 11 | # WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | # General Public License for more details. 14 | # 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program. If not, see . 17 | 18 | 19 | # NOTE: this is just what I use on my system! I DON'T suggest these fan curves 20 | # since they are aggressive and unsafe. I play loose since I'm lazy. Here's some setup notes: 21 | # I write iLO directly to this system, running in a CentOS ESXI VM on my server 22 | # I have this script loaded at boot with crontab @reboot 23 | # I have a dnsmasq server on here to serve DHCP to the iLO on a private subnet (10.0.99.0) 24 | # I have the iLO's password saved in /root/passwordfile and load it with sshpass 25 | # I would rather do this via SSH keys, but I couldn't be bothered to get them working on the iLO. 26 | 27 | # This setup is tuned for my DL380e Gen8 LFF server. 28 | IP=10.0.99.50 29 | PASSWD="/root/passwordfile" 30 | 31 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan info' 32 | 33 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 50 off' 34 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 51 off' 35 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 52 off' 36 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 53 off' 37 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 54 off' 38 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 55 off' 39 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 56 off' 40 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 57 off' 41 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 34 off' 42 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 35 off' 43 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 36 off' 44 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 37 off' 45 | 46 | #fix minimums 47 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan t 00 set 5' 48 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan p 0 min 50' 49 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan p 1 min 50' 50 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan p 2 min 50' 51 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan p 3 min 65' 52 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan p 4 min 65' 53 | sshpass -f "$PASSWD" ssh Administrator@${IP} 'fan p 5 min 65' 54 | -------------------------------------------------------------------------------- /scripts/kg-silence-dl380pG8.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | # 3 | # This file is part of the ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 4 | # Copyright (c) 2022 Kendall Goto. 5 | # 6 | # This program is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, version 3. 9 | # 10 | # This program is distributed in the hope that it will be useful, but 11 | # WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | # General Public License for more details. 14 | # 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program. If not, see . 17 | 18 | 19 | # NOTE: this is just what I use on my system! I DON'T suggest these fan curves 20 | # since they are aggressive and unsafe. I play loose since I'm lazy. Here's some setup notes: 21 | # I write iLO directly to this system, running in a CentOS ESXI VM on my server 22 | # I have this script loaded at boot with crontab @reboot 23 | # I have a dnsmasq server on here to serve DHCP to the iLO on a private subnet (10.0.99.0) 24 | # I have the iLO's password saved in /root/passwordfile and load it with sshpass 25 | # I would rather do this via SSH keys, but I couldn't be bothered to get them working on the iLO. 26 | 27 | # This setup is tuned for my DL380p Gen8 SFF server. 28 | IP=10.0.99.50 29 | PASSWD="/root/passwordfile" 30 | OPT="-oHostKeyAlgorithms=+ssh-dss -oKexAlgorithms=+diffie-hellman-group14-sha1" 31 | 32 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan info' 33 | 34 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan t 37 off' 35 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan t 35 off' 36 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan t 60 off' 37 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan t 56 off' 38 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan t 57 off' 39 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan t 61 off' 40 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan t 47 off' 41 | 42 | #fix minimums 43 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan t 00 set 5' 44 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan p 0 min 50' 45 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan p 1 min 50' 46 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan p 2 min 50' 47 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan p 3 min 65' 48 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan p 4 min 65' 49 | sshpass -f "$PASSWD" ssh ${OPT} Administrator@${IP} 'fan p 5 min 65' 50 | -------------------------------------------------------------------------------- /scripts/quietFansDL380G9.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # Used to solve the "Max fans because we decided to use a graphics card" bug. 4 | # Seems that just restarting using these commands is enough to return the fan behavior to normal. 5 | # Tested on DL380 Gen9 6 | 7 | # Replace these values with those relevant to your iLO. Alternatively, 8 | # consider defining them with environment variables. 9 | 10 | IP=192.168.86.48 11 | USER='Administrator' 12 | PWD='pass' 13 | 14 | sshpass -p $PWD ssh -oKexAlgorithms=+diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 -oHostKeyAlgorithms=ssh-rsa,ssh-dss $USER@$IP 'fan g stop' 15 | sshpass -p $PWD ssh -oKexAlgorithms=+diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 -oHostKeyAlgorithms=ssh-rsa,ssh-dss $USER@$IP 'fan g start' 16 | 17 | 18 | # The script can be triggered on startup with a crontab. 19 | -------------------------------------------------------------------------------- /scripts/readme.md: -------------------------------------------------------------------------------- 1 | # Scripts 2 | 3 | Just as a base reference to how to use some of this work, I've uploaded my fan control boot scripts here. **I do not suggest them to be used** but they provide good context for how you can automate controlling the fans. 4 | 5 | If you have a good script that you found useful utilizing the patched firmware, please let me know / make a PR and I'd love to include it. 6 | -------------------------------------------------------------------------------- /scripts/tty13-fanctrl.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | 4 | # This was made using bits of ja-silence-dl20G9.sh code and inspired by other bits here and there. 5 | # At first, I heavily modified cf-dynamic-fans to match my setup and include a logarithmic curve for the fans, 6 | # it worked great, but the issue was that I did not trust relying on a bash script to control the maximum fan speed. 7 | # Relying on such a high-level utility to control something as important as the temperature seemed a bit dangerous. 8 | # So I looked at the fan info, read a bit and started to understand what was faulty in HPE's algorithms. 9 | # I ended up with what I believe to be a "safe" solution for my setup, since it does not modify any fan maximum 10 | # and more importantly, does not rely on any high-level running process 11 | # As a result, the fans can and will ramp up according to the readings, which are not modified 12 | # I only lower the minimum limit and increase some faulty (I believe) low setpoints 13 | 14 | 15 | 16 | ### CONFIG GOES HERE 17 | IP=192.168.1.120 18 | SCREEN_NAME=iLO4fansession 19 | SSH_USER=fanctrl # You should set up a different user than Administrator in iLO, no extra permissions are needed for the user. 20 | SSH_KEY=/etc/ssh/id_fanctrl # Set to the location of the SSH key for the above user. 21 | 22 | PID_NUMBER=52 # Set here the number of PIDs that fan info reports in the algorithms table. 23 | MIN_SPEED=2550 # Set the minimum speed the fans can run at (format is XX.XX°C = XXXX) 24 | ### END CONFIG 25 | 26 | 27 | # To prevent bash from complaining about the locale in some cases where numeric locale uses a comma 28 | export LC_NUMERIC="C" 29 | 30 | # Check if iLO IP is up 31 | while :; do 32 | echo -e "Checking if ${IP} is up." 33 | ping -q -c 1 ${IP} &>/dev/null 34 | if [ $? -ne 0 ]; then 35 | echo "iLO is not responding. Reattempting in 30 seconds."; 36 | else 37 | break 38 | fi 39 | sleep 30 40 | done 41 | 42 | 43 | # Initiate iLO session : 44 | if ! screen -list | grep -q "$SCREEN_NAME"; then 45 | IP=${IP} screen -dmS $SCREEN_NAME 46 | echo -e "Establishing SSH session inside screen." 47 | 48 | 49 | screen -S $SCREEN_NAME -X stuff "ssh -i ${SSH_KEY} -t ${SSH_USER}@${IP} -o PubKeyAcceptedKeyTypes=+ssh-rsa -o HostKeyAlgorithms=+ssh-dss -o KexAlgorithms=+diffie-hellman-group14-sha1 -o LocalCommand='fan info'"`echo -ne '\015'` 50 | # `echo -ne '\015'` emulates pressing the Enter key. 51 | 52 | # Wait 53 | echo -e "Sleeping for 5 seconds." 54 | sleep 5 55 | # Stop waiting :o) 56 | echo -e "Resuming fan commands." 57 | else 58 | echo "Found screen session $SCREEN_NAME" 59 | fi 60 | 61 | # Set minimum speed for the fans 62 | for ((i=1;i<=PID_NUMBER;i++)); do 63 | screen -S $SCREEN_NAME -X stuff "fan pid $i lo $MIN_SPEED"`echo -ne '\015'` 64 | sleep .2 65 | # Sleep for 200ms, because iLO is slow and sometimes skips commands 66 | done 67 | 68 | MIN_SPEED_ADJ=$(printf "%.1f\n" $(echo "$MIN_SPEED/100" | bc -l)) 69 | for ((i=0;i<=7;i++)); do 70 | screen -S $SCREEN_NAME -X stuff "fan p $i min $MIN_SPEED_ADJ"`echo -ne '\015'` 71 | sleep .2 72 | done 73 | 74 | REAL_SPEED=$(printf "%.1f\n" $(echo "($MIN_SPEED/25500)*100" | bc -l)) 75 | echo -e "Minimum fan speed set to $REAL_SPEED%" 76 | 77 | # Set here the correction for faulty PID temperatures which cause the fans to start ramping up too soon 78 | # For me, the setpoint for PID 50 (whatever that is) was 36°C ! And the setpoint for pid 35 (PCI-2 Zone) was 40°C 79 | # To keep things safe, take notice of the Caution and Critical temperatures in fan info. 80 | # You might want to ignore some faulty readings too if you have non-HP stuff, I don't know much about that, my setup is pretty stock. 81 | # (proprietary software/hardware sucks) 82 | 83 | screen -S $SCREEN_NAME -X stuff "fan pid 50 sp 5500"`echo -ne '\015'` # No Caut nor Crit info, but I guess 55°C is fine 84 | sleep .2 85 | screen -S $SCREEN_NAME -X stuff "fan pid 35 sp 5200"`echo -ne '\015'` # Caut was 65°C and Crit was 70°C 86 | echo -e "Corrected faulty setpoints" 87 | -------------------------------------------------------------------------------- /util/asm/fan_research.S: -------------------------------------------------------------------------------- 1 | h: 2 | MOV r0, #5 ; entrypoint for health (call switch #5) 3 | B start 4 | 5 | fan: 6 | MOV r0, #6 ; entrypoint for fan (call switch #6) 7 | B start 8 | 9 | ocsd: 10 | MOV r0, #7 ; entrypoint for ocsd (call switch #7) 11 | B start 12 | 13 | ocbb: 14 | MOV r0, #8 ; entrypoint for ocbb (call switch #8) 15 | 16 | start: 17 | MOV R12, SP ; Initialize 18 | PUSH {R10, R11, R12, LR, PC} 19 | SUB R11, R12, #4 20 | SUB SP, SP, #0xA00 ; Allocate space on stack for IPC struct 21 | STR R0, [SP] ; Store R0 as first value in struct (switch value) 22 | MOV R3, #0 ; Init R3 to zero 23 | ADD R2, SP, #4 ; Move R2 to write at 0x4 in IPC struct 24 | ADD R0, R7, #0x1000 ; Move R0 to start of input arg 25 | loop: ; Parse string char-by-char 26 | LDRB R1, [R0], #1 ; Load char from string; R0++ (0x1000+i) 27 | CMP R1, #0x20 ; if loaded == ' ' 28 | STRBEQ R3, [R2],#1 ; then store \0 into R2, R2++ 29 | STRBNE R1, [R2],#1 ; else store char in R2, r2++ 30 | CMP R1, #0 ; if char != \0 31 | BNE loop ; then loop 32 | STRB R3, [R2] ; store final \0 onto R2 33 | MOV R0, SP ; Setup call 34 | ADD R1, SP, #0x500 ; Setup call 35 | BL dump_reg ; dump registers 36 | LDR R0, [SP,#0x500] ; load yielded value to R0 37 | LDMDB R11, {R10, R11,SP,PC} ; exit 38 | 39 | dump_reg: 40 | LDR R10, dump_reg_fn 41 | BX R10 42 | dump_reg_fn: 43 | .word 0xed290 44 | -------------------------------------------------------------------------------- /util/asm/test.S: -------------------------------------------------------------------------------- 1 | _start: 2 | LDR R10, DateFn 3 | BX R10 4 | 5 | DateFn: 6 | .word 0x19DB4 7 | -------------------------------------------------------------------------------- /util/common.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | # 3 | # This file is part of ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 4 | # Copyright (c) 2022 Kendall Goto 5 | # with some code derived from https://github.com/airbus-seclab/ilo4_toolbox 6 | # 7 | # This program is free software: you can redistribute it and/or modify 8 | # it under the terms of the GNU General Public License as published by 9 | # the Free Software Foundation, version 3. 10 | # 11 | # This program is distributed in the hope that it will be useful, but 12 | # WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 | # General Public License for more details. 15 | # 16 | # You should have received a copy of the GNU General Public License 17 | # along with this program. If not, see . 18 | import os 19 | from keystone import * 20 | import sys 21 | 22 | def read_patch(file): 23 | with open(file, "rb") as f: 24 | handler = f.read() 25 | # remove comments ... 26 | handler_split = handler.split('\n') 27 | for i in range(len(handler_split)): 28 | this_line = handler_split[i] 29 | this_line = this_line.split(";")[0] 30 | handler_split[i] = this_line 31 | handler = "\n".join(handler_split) 32 | # print handler 33 | ks = Ks(KS_ARCH_ARM, KS_MODE_ARM) 34 | try: 35 | output = ks.asm(handler) 36 | except KsError as e: 37 | print "Error with Keystone ", e.message 38 | if e.get_asm_count() is not None: 39 | print "asmcount = %u" % e.get_asm_count() 40 | sys.exit(1) 41 | return ''.join(chr(x) for x in output[0]) 42 | def hexdump(src, length=16): 43 | FILTER = ''.join([(len(repr(chr(x))) == 3) and chr(x) or '.' for x in range(256)]) 44 | lines = [] 45 | for c in xrange(0, len(src), length): 46 | chars = src[c:c+length] 47 | hex = ' '.join(["%02x" % ord(x) for x in chars]) 48 | printable = ''.join(["%s" % ((ord(x) <= 127 and FILTER[ord(x)]) or '.') for x in chars]) 49 | lines.append("%04x %-*s %s\n" % (c, length*3, hex, printable)) 50 | return ''.join(lines) 51 | -------------------------------------------------------------------------------- /util/gcc/.gitignore: -------------------------------------------------------------------------------- 1 | *.bin 2 | *.o 3 | *.o.d 4 | -------------------------------------------------------------------------------- /util/gcc/Makefile: -------------------------------------------------------------------------------- 1 | # This file is part of ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 2 | # Derived from Airbus Security Lab @ https://github.com/airbus-seclab/ilo4_toolbox 3 | # 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU General Public License as published by 6 | # the Free Software Foundation, version 3. 7 | # 8 | # This program is distributed in the hope that it will be useful, but 9 | # WITHOUT ANY WARRANTY; without even the implied warranty of 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 | # General Public License for more details. 12 | # 13 | # You should have received a copy of the GNU General Public License 14 | # along with this program. If not, see . 15 | 16 | VERSION ?= 277 17 | 18 | ARM_OBJDUMP ?= arm-none-eabi-objdump 19 | ARM_GCC ?= arm-none-eabi-gcc 20 | HPILO_VER := $(shell printf "0x%d" $(VERSION)) 21 | CPPFLAGS += -DHPILO_VER=$(HPILO_VER) 22 | WARNINGS := -Wall -Wextra 23 | WARNINGS += -Wno-unused-parameter 24 | WARNINGS += -Wno-unused-variable 25 | WARNINGS += -Wno-unused-function 26 | WARNINGS += -Werror 27 | 28 | all: main.bin 29 | 30 | clean: 31 | $(RM) ./*.bin ./*.o ./.*.d 32 | 33 | main.bin: main.linked.o 34 | if $(ARM_OBJDUMP) -r $< | grep -i shcode ; then \ 35 | echo "Fatal error: relocations exist!" ; \ 36 | $(ARM_OBJDUMP) -r $< ; \ 37 | false ; \ 38 | fi 39 | arm-none-eabi-objcopy -j .shcode -O binary $< $@ 40 | chmod -x $@ 41 | stat -c '%s %n' $@ 42 | 43 | main.linked.o: main.o 44 | @ 45 | arm-none-eabi-ld -nostdlib -O1 -T main.lds -shared -Bsymbolic -as-needed -no-undefined -warn-common -fatal-warnings $^ -o $@ 46 | 47 | main.o: main.c 48 | $(ARM_GCC) $(WARNINGS) $(CPPFLAGS) -Wp,-MT,$@ -Wp,-MD,$(dir $@).$(notdir $@).d \ 49 | -O2 -c -fPIC -nostdlib -ffreestanding -mpic-register=r4 $< -o $@ 50 | 51 | -include .*.d 52 | 53 | dump: main.bin 54 | $(ARM_OBJDUMP) -D -bbinary -marm $< 55 | 56 | .PHONY: all clean dump dumplinked dumplinkedd 57 | .PRECIOUS: main.linked.o main.o 58 | -------------------------------------------------------------------------------- /util/gcc/ilo.h: -------------------------------------------------------------------------------- 1 | /* 2 | # This file is part of ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 3 | # Derived from Airbus Security Lab @ https://github.com/airbus-seclab/ilo4_toolbox 4 | # 5 | # This program is free software: you can redistribute it and/or modify 6 | # it under the terms of the GNU General Public License as published by 7 | # the Free Software Foundation, version 3. 8 | # 9 | # This program is distributed in the hope that it will be useful, but 10 | # WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 | # General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program. If not, see . 16 | */ 17 | #pragma once 18 | 19 | typedef unsigned char u8, uint8_t, bool; 20 | typedef unsigned short u16, uint16_t; 21 | typedef unsigned int u32, uint32_t, mode_t, off_t, size_t; 22 | typedef unsigned long long u64, uint64_t; 23 | typedef int ssize_t; 24 | 25 | typedef uint32_t dev_t, ino_t, nlink_t, uid_t, gid_t, dev_t, blksize_t, blkcnt_t, time_t; 26 | 27 | #define false (0U) 28 | #define true (1U) 29 | 30 | /* From Linux:include/stddef.h */ 31 | #define offsetof(TYPE, MEMBER) ((size_t)&((TYPE *)0)->MEMBER) 32 | 33 | #define STATIC_ASSERT(cond) _Static_assert(cond, #cond) 34 | STATIC_ASSERT(sizeof(uint8_t) == 1); 35 | STATIC_ASSERT(sizeof(uint16_t) == 2); 36 | STATIC_ASSERT(sizeof(uint32_t) == 4); 37 | STATIC_ASSERT(sizeof(uint64_t) == 8); 38 | 39 | typedef struct DIR_s { 40 | u32 unknown; 41 | } DIR; 42 | enum { 43 | DT_UNKNOWN = 0, 44 | DT_FIFO = 1, 45 | DT_CHR = 2, 46 | DT_DIR = 4, 47 | DT_BLK = 6, 48 | DT_REG = 8, 49 | DT_LNK = 10, 50 | DT_SOCK = 12, 51 | }; 52 | struct dirent { 53 | uint32_t d_ino; /* Inode number (2 for /, 3 for /mnt, 4 for /tmp) */ 54 | uint16_t d_reclen; /* Size of the record in the directory inode */ 55 | uint8_t d_type; /* DT_... */ 56 | uint8_t d_namelen; /* Length of name */ 57 | char d_name[256]; 58 | }; 59 | struct ipc { 60 | uint32_t call; 61 | char params[256]; 62 | }; 63 | STATIC_ASSERT(offsetof(struct ipc, call) == 0x0); 64 | STATIC_ASSERT(offsetof(struct ipc, params) == 0x4); 65 | 66 | struct timespec { 67 | time_t tv_sec; 68 | long tv_nsec; 69 | }; 70 | struct stat { 71 | dev_t st_dev; /* ID of device containing file */ 72 | ino_t st_ino; /* Inode number */ 73 | mode_t st_mode; /* File type and mode */ 74 | nlink_t st_nlink; /* Number of hard links */ 75 | uid_t st_uid; /* User ID of owner */ 76 | gid_t st_gid; /* Group ID of owner */ 77 | dev_t st_rdev; /* Device ID (if special file) */ 78 | off_t st_size; /* Total size, in bytes */ 79 | blksize_t st_blksize; /* Block size for filesystem I/O */ 80 | blkcnt_t st_blocks; /* Number of 512B blocks allocated */ 81 | 82 | struct timespec st_atim; /* Time of last access */ 83 | struct timespec st_mtim; /* Time of last modification */ 84 | struct timespec st_ctim; /* Time of last status change */ 85 | }; 86 | 87 | #define errno (*(int *)get_errno_ptr()) 88 | 89 | #if HPILO_VER == 0x277 90 | #include "ilo_277.h" 91 | #else 92 | #error Unknown iLO Version 93 | #endif 94 | -------------------------------------------------------------------------------- /util/gcc/ilo_277.h: -------------------------------------------------------------------------------- 1 | /* 2 | # This file is part of ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 3 | # Derived from Airbus Security Lab @ https://github.com/airbus-seclab/ilo4_toolbox 4 | # 5 | # This program is free software: you can redistribute it and/or modify 6 | # it under the terms of the GNU General Public License as published by 7 | # the Free Software Foundation, version 3. 8 | # 9 | # This program is distributed in the hope that it will be useful, but 10 | # WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 | # General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program. If not, see . 16 | */ 17 | 18 | #include "ilo.h" 19 | 20 | struct CLI_SESSION { 21 | u8 pad1[0x164]; 22 | char argv[16][256]; /* 16 256-char-wide command arguments */ 23 | u32 argc; 24 | u8 pad2[0x204]; 25 | char argstr[256]; 26 | }; 27 | /* ensure we've got our padding correct */ 28 | STATIC_ASSERT(offsetof(struct CLI_SESSION, argv) == 0x164); 29 | STATIC_ASSERT(offsetof(struct CLI_SESSION, argc) == 0x1164); 30 | STATIC_ASSERT(offsetof(struct CLI_SESSION, argstr) == 0x136C); 31 | 32 | /* ConAppCLI */ 33 | static int (__attribute__((format(printf, 2, 3))) *CLI_printf)(u32 cli_id, const char *fmt, ...) = (const void *)0x12F68; 34 | static struct CLI_SESSION *(*ConAppCLI_get_CLI_session_ptr)(u32 cli_id) = (const void *)0x21F9C; 35 | static int (*ConAppCLI_call_Health)(struct ipc *ref, uint32_t *result) = (const void *)0x5B57C; 36 | static int (*ConAppCLI_getFnIndex)(char *command) = (const void *)0x1832C; 37 | static int (*ConAppCLI_strcasecmp)(char *str1, char *str2) = (const void *)0x7F434; 38 | 39 | /* libc.so */ 40 | static void *(*malloc)(size_t size) = (const void *)0x017B85E8; 41 | static void (*free)(void *ptr) = (const void *)0x017B86F4; 42 | static size_t (*strlen)(const char *str) = (const void *)0x017B2800; 43 | 44 | static DIR *(*opendir)(const char *path) = (const void *)0x017A0CB4; 45 | static void (*closedir)(DIR *dir) = (const void *)0x017A0D70; 46 | static int (*readdir_r)(DIR *dir, struct dirent *entry, struct dirent **result) = (const void *)0x017A0DB4; 47 | 48 | static int (*lstat)(const char *pathname, struct stat *statbuf) = (const void *)0x017AC75C; 49 | static int (*ioctl)(int fd, unsigned long request, ...) = (const void *)0x017AD820; 50 | static int (*open)(const char *pathname, int flags, mode_t mode) = (const void *)0x017AE89C; 51 | static ssize_t (*write)(int fd, const void *buf, size_t count) = (const void *)0x017AE9D8; 52 | static ssize_t (*read)(int fd, void *buf, size_t count) = (const void *)0x017AEABC; 53 | static int (*close)(int fd) = (const void *)0x017AEC80; 54 | static off_t (*lseek)(int fd, off_t offset, int whence) = (const void *)0x017AED24; 55 | 56 | static int *(*get_errno_ptr)(void) = (const void *)0x017A25A0; 57 | 58 | static int (__attribute__((format(printf, 3, 4))) *snprintf)(char *str, size_t size, const char *format, ...) = (const void *)0x017B3FE0; 59 | 60 | static int (*libc_RequestResource)(u32 *pRes, const char *szResName, const char *szSystemPassword) = (const void *)0x017A3948; 61 | 62 | static int (*AllocateAnyMemoryRegion)(u32 pool, u32 size, u32 *dwMemRegion) = (const void *)0x017A1DB4; 63 | 64 | /* libINTEGRITY.so */ 65 | static int (*INTEGRITY_CloseConnection)(u32 dwMemIndex) = (const void *)0x017808FC; 66 | static int (*INTEGRITY_MapMemoryRegion)(u32 dwMemIndex, u32 dwMemoryRegion) = (const void *)0x017809AC; 67 | static int (*INTEGRITY_UnMapMemoryRegion)(u32 dwMemIndex, u32 *pResult) = (const void *)0x017826D4; 68 | static int (*INTEGRITY_SetMemoryRegionAttributes)(u32 dwMemoryRegion, u32 dwFlags) = (const void *)0x01782734; 69 | static int (*INTEGRITY_CopyToMemoryRegion)(u32 physMR, u32 physaddr, const void *pInput, size_t ccbInput, u32 unknown_2832) = (const void *)0x1782818; 70 | static int (*INTEGRITY_CopyFromMemoryRegion)(u32 dwPhysMemoryRegion, u32 dwPhysAddr, void *pOutput, u32 dwOutLen, u32 unknown_2049) = (const void *)0x0178284C; 71 | static int (*INTEGRITY_GetMemoryRegionAttributes)(u32 dwMemoryRegion, u32 *pdwFlags) =(const void *) 0x01782964; 72 | static int (*INTEGRITY_GetMemoryRegionAddress)(u32 dwMemIndex, u32 *pVirtAddrStart, u32 *pVirtAddrEnd) = (const void *)0x017829A0; 73 | -------------------------------------------------------------------------------- /util/gcc/main.c: -------------------------------------------------------------------------------- 1 | /* 2 | # This file is part of ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 3 | # Copyright (c) 2022 Kendall Goto 4 | # with some code derived from https://github.com/airbus-seclab/ilo4_toolbox 5 | # 6 | # This program is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, version 3. 9 | # 10 | # This program is distributed in the hope that it will be useful, but 11 | # WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | # General Public License for more details. 14 | # 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program. If not, see . 17 | */ 18 | 19 | #include "ilo.h" 20 | __asm__ ( 21 | " .section .entry, \"ax\", %progbits\n" 22 | " .arm\n" 23 | " .globl _entrypoint\n" 24 | " .hidden _entrypoint\n" 25 | " .type _entrypoint, %function\n" 26 | "_entrypoint:\n" 27 | " b payload_start\n" 28 | ); 29 | /* 30 | void dump_registers(u32 cli_id) { 31 | //struct CLI_SESSION *pCli; 32 | 33 | //pCli = ConAppCLI_get_CLI_session_ptr(cli_id); 34 | 35 | uint32_t r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10; 36 | asm ( 37 | "STR %%r0, %[a0] ;" 38 | "STR %%r1, %[a1] ;" 39 | "STR %%r2, %[a2] ;" 40 | "STR %%r3, %[a3] ;" 41 | "STR %%r4, %[a4] ;" 42 | "STR %%r5, %[a5] ;" 43 | "STR %%r6, %[a6] ;" 44 | "STR %%r7, %[a7] ;" 45 | "STR %%r8, %[a7] ;" 46 | "STR %%r9, %[a7] ;" 47 | "STR %%r10, %[a10] ;" 48 | : 49 | [a0] "=m" (r0), [a1] "=m" (r1), [a2] "=m" (r2), [a3] "=m" (r3), 50 | [a4] "=m" (r4), [a5] "=m" (r5), [a6] "=m" (r6), [a7] "=m" (r7), 51 | [a8] "=m" (r8), [a9] "=m" (r9), [a10] "=m" (r10) 52 | ); 53 | CLI_printf(cli_id, "r0=%08x\n", r0); 54 | CLI_printf(cli_id, "r1=%08x\n", r1); 55 | CLI_printf(cli_id, "r2=%08x\n", r2); 56 | CLI_printf(cli_id, "r3=%08x\n", r3); 57 | CLI_printf(cli_id, "r4=%08x\n", r4); 58 | CLI_printf(cli_id, "r5=%08x\n", r5); 59 | CLI_printf(cli_id, "r6=%08x\n", r6); 60 | CLI_printf(cli_id, "r7=%08x\n", r7); 61 | CLI_printf(cli_id, "r8=%08x\n", r8); 62 | CLI_printf(cli_id, "r9=%08x\n", r9); 63 | CLI_printf(cli_id, "r10=%08x\n", r10); 64 | } 65 | */ 66 | void dump_vmemory(u32 cli_id, uint32_t startAddr, uint32_t len) { 67 | uint32_t i; 68 | char buff[17]; 69 | char *pc = (char *)startAddr; 70 | for(i = 0; i < len; i++) { 71 | if((i % 16) == 0) { 72 | if(i != 0) 73 | CLI_printf(cli_id, "\t%s\n", buff); 74 | CLI_printf(cli_id, "%04x\t%04x ", i, i+startAddr); 75 | } 76 | 77 | CLI_printf(cli_id, " %02x", pc[i]); 78 | 79 | if((pc[i] < 0x20) || (pc[i] > 0x7e)) { 80 | buff[i % 16] = '.'; 81 | } else { 82 | buff[i % 16] = pc[i]; 83 | } 84 | buff[(i % 16) + 1] = '\0'; 85 | } 86 | while((i%16) != 0) { 87 | CLI_printf(cli_id, "\t"); 88 | i++; 89 | } 90 | CLI_printf(cli_id, "\t%s\n\n\n", buff); 91 | } 92 | 93 | void health_handler(u32 cli_id) { 94 | struct CLI_SESSION *pCli; 95 | pCli = ConAppCLI_get_CLI_session_ptr(cli_id); 96 | CLI_printf(cli_id, "%s", pCli->argstr); 97 | char *args = pCli->argstr; 98 | struct ipc testFan; 99 | uint32_t mode; 100 | uint32_t base = strlen(pCli->argv[0]) + 1; 101 | if(ConAppCLI_strcasecmp(pCli->argv[1], "h") == 0) { 102 | mode = 5; 103 | } else if(ConAppCLI_strcasecmp(pCli->argv[1], "fan") == 0){ 104 | mode = 6; 105 | } else if(ConAppCLI_strcasecmp(pCli->argv[1], "ocsd") == 0) { 106 | mode = 7; 107 | } else if((ConAppCLI_strcasecmp(pCli->argv[1], "ocbb") == 0)) { 108 | mode = 8; 109 | } else { 110 | CLI_printf(cli_id, "must call fan/ocsd/ocbb/h\n"); 111 | return; 112 | } 113 | testFan.call = mode; 114 | for(int i = 0; i < 255; i++) { 115 | char thisChar = args[i+base]; 116 | if(thisChar == ' ') { 117 | testFan.params[i] = '\0'; 118 | } 119 | else if(thisChar == '\0') { 120 | testFan.params[i] = '\0'; 121 | break; 122 | } else { 123 | testFan.params[i] = thisChar; 124 | } 125 | } 126 | dump_vmemory(cli_id, (int)&testFan, sizeof(testFan)); 127 | 128 | uint32_t *result = malloc(0x500); 129 | uint32_t rescode = ConAppCLI_call_Health(&testFan, result); 130 | CLI_printf(cli_id, "Done, result %d\n", rescode); 131 | dump_vmemory(cli_id, (uint32_t)result, 0x500); 132 | free(result); 133 | 134 | } 135 | 136 | static __attribute__((used)) 137 | void payload_start(u32 cli_id) { 138 | health_handler(cli_id); 139 | } 140 | -------------------------------------------------------------------------------- /util/gcc/main.lds: -------------------------------------------------------------------------------- 1 | OUTPUT_FORMAT("elf32-littlearm") 2 | ENTRY(_entrypoint) 3 | 4 | SECTIONS 5 | { 6 | . = 0; 7 | .shcode : { 8 | *(.entry) 9 | . = ALIGN(4); 10 | *(.text) 11 | . = ALIGN(4); 12 | *(.data .data.*) 13 | . = ALIGN(4); 14 | *(.rodata *.rodata.*) 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /util/patch.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | # 3 | # This file is part of ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 4 | # Copyright (c) 2022 Kendall Goto 5 | # with some code derived from https://github.com/airbus-seclab/ilo4_toolbox 6 | # 7 | # This program is free software: you can redistribute it and/or modify 8 | # it under the terms of the GNU General Public License as published by 9 | # the Free Software Foundation, version 3. 10 | # 11 | # This program is distributed in the hope that it will be useful, but 12 | # WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 | # General Public License for more details. 15 | # 16 | # You should have received a copy of the GNU General Public License 17 | # along with this program. If not, see . 18 | 19 | import sys 20 | import json 21 | import imp 22 | import os 23 | from keystone import * 24 | from common import * 25 | 26 | if len(sys.argv) < 4: 27 | print "usage: %s " % sys.argv[0] 28 | sys.exit(1) 29 | 30 | with open(sys.argv[1], "rb") as f: 31 | data = f.read() 32 | 33 | with open(sys.argv[2], "rb") as f: 34 | patches = json.load(f) 35 | 36 | for patch in patches: 37 | print "Applying patch, \"%s\"" % patch["remark"] 38 | 39 | offs = int(patch["offset"], 0) 40 | size = patch["size"] 41 | endOffs = offs+size 42 | check_data = data[offs:endOffs] 43 | 44 | if "prev_data" in patch: 45 | if "noDecode" in patch: 46 | prev_data = patch["prev_data"] 47 | else: 48 | prev_data = ("".join(patch["prev_data"].split())).decode("hex") 49 | if check_data != prev_data: 50 | print hexdump(prev_data) 51 | print hexdump(check_data) 52 | print "[-] Error, bad file content at offset %x" % offs 53 | sys.exit(1) 54 | if "file" in patch: 55 | dir = os.path.dirname(sys.argv[2]) 56 | patch["file"] = os.path.join(dir, "asm", patch["file"]) 57 | 58 | patch["patch"] = read_patch(patch["file"]) 59 | patch["noDecode"] = True 60 | if "noDecode" in patch: 61 | patch_data = patch["patch"] 62 | else: 63 | patch_data = ("".join(patch["patch"].split())).decode("hex") 64 | realsize = sys.getsizeof(patch_data) - sys.getsizeof('') 65 | print hexdump(check_data) 66 | print hexdump(patch_data) 67 | if realsize != size: 68 | print "Patch length (%d) does not match replaced size (%d)" % (realsize, size) 69 | sys.exit(1) 70 | data = data[:offs] + patch_data + data[endOffs:] 71 | 72 | data = data 73 | with open(sys.argv[3], "wb") as f: 74 | f.write(data) 75 | -------------------------------------------------------------------------------- /util/repl.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | # 3 | # This file is part of ilo4_unlock (https://github.com/kendallgoto/ilo4_unlock/). 4 | # Copyright (c) 2022 Kendall Goto 5 | # with some code derived from https://github.com/airbus-seclab/ilo4_toolbox 6 | # 7 | # This program is free software: you can redistribute it and/or modify 8 | # it under the terms of the GNU General Public License as published by 9 | # the Free Software Foundation, version 3. 10 | # 11 | # This program is distributed in the hope that it will be useful, but 12 | # WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 | # General Public License for more details. 15 | # 16 | # You should have received a copy of the GNU General Public License 17 | # along with this program. If not, see . 18 | 19 | """ 20 | This REPL environment is heavily based on Airbus Security Lab's work. 21 | It produces an SSH-based REPL that allows us to (r)ead/(a)lloc/(w)rite/(f)ree/e(x)ecute 22 | arbitrary code on a running device, patched with our tools. Install 277-tools before using this 23 | REPL! 24 | 25 | Notably, we can create new shell commands on-the-fly by performing `wf [source.S]`, which 26 | assembles, allocates and writes custom code to memory. 27 | 28 | Use at your own risk. 29 | """ 30 | import keystone 31 | import paramiko 32 | import argparse 33 | import logging 34 | import sys 35 | import time 36 | import struct 37 | import os 38 | from keystone import * 39 | from common import * 40 | 41 | """CONFIG""" 42 | logging.basicConfig(level=logging.DEBUG) 43 | triggerCommand = b'help' 44 | """END CONFIG""" 45 | def recv_all(): 46 | time.sleep(.05) 47 | result = b'' 48 | while channel.recv_ready(): 49 | result += channel.recv(4096) 50 | if result: 51 | logger.debug("SSH recv: %r", result) 52 | return result 53 | def recv_force(): 54 | data = recv_all() 55 | numiter = 0 56 | while not data: 57 | numiter += 1 58 | logger.debug("Waiting ...") 59 | if numiter <= 10: 60 | time.sleep(.1) 61 | else: 62 | logger.fatal("Time out") 63 | return "hpiLO" 64 | data = recv_all() 65 | return data 66 | def recv_until_prompt(): 67 | data = recv_force() 68 | while b'hpiLO' not in data: 69 | data += recv_force() 70 | return data 71 | def send(data): 72 | logger.debug("SSH send: %r", data) 73 | channel.send(data) 74 | def srp(d): 75 | send(d) 76 | return recv_until_prompt() 77 | def run_command(cmd): 78 | result = srp(cmd + b'\r') 79 | needle = b'status_tag=COMMAND COMPLETED\r\n' 80 | idx = result.index(needle) 81 | return result[idx+len(needle):].split(b'\n', 4)[-1] 82 | 83 | A16_ENCODING = [c.encode('ascii') for c in 'ABCDEFGHIJKLMNOP'] 84 | def a16_u8_encode(val): 85 | """Encode a u8 in alpha-16 encoding""" 86 | assert 0 <= val <= 0xff 87 | return A16_ENCODING[val >> 4] + A16_ENCODING[val & 15] 88 | def a16_data_encode(data): 89 | return b''.join(a16_u8_encode(struct.unpack('B', data[i:i+1])[0]) for i in range(len(data))) 90 | def a16_u32_encode(val): 91 | """Encode a u32 in alpha-16 encoding (in Big Endian)""" 92 | return a16_data_encode(struct.pack('>I', val)) 93 | def send_custom(op, arg1, *args): 94 | arg1 = a16_u32_encode(arg1) 95 | cmd = triggerCommand + b' ' + op.encode('ascii') + arg1 96 | if args: 97 | cmd += b' ' + b' '.join(a.encode('ascii') if isinstance(a, str) else a for a in args) 98 | logger.debug(hexdump(cmd)) 99 | # cmd = b'uname' 100 | output = srp(cmd + b'\r') 101 | cmdindex = output.index(cmd) 102 | output_prefix = output[:cmdindex].lstrip(b'\r\n') 103 | output = output_prefix + output[cmdindex + len(cmd):].lstrip(b'\r\n') 104 | output = output[:output.rindex(b'hpiLO')].rsplit(b'\n', 1)[0] 105 | return output.strip(b'\r\n') 106 | def exec_read(cmd): 107 | if len(cmd) < 3: 108 | print "r [address] [len]" 109 | return 110 | addr = int(cmd[1], 0) 111 | result = send_custom('r', addr, cmd[2]) 112 | print hexdump(result) 113 | print result 114 | return result 115 | def exec_write_partial(addr, data): 116 | if not data: 117 | return (0, b'') 118 | size = min(len(data), 100) 119 | output = send_custom('w', addr, a16_data_encode(data[:size])) 120 | all_lines = [line.strip() for line in output.decode('ascii').splitlines() if line not in ('', ' ', '> ', '-> ')] 121 | if len(all_lines) != size: 122 | logger.error("Unexpected output line number, got %d expected %d", len(all_lines), size) 123 | assert len(all_lines) == size 124 | for i, line in enumerate(all_lines): 125 | logger.debug(line) 126 | expected = '%#x <- %#x' % (addr + i, bytearray(data[i])[0]) 127 | if expected.endswith(' <- 0x0'): 128 | expected = '%#x <- 0' % (addr+i) 129 | if expected != line: 130 | logger.warning("Unexpected write writing 0x%02x to %#x: got %r instead of %r", data[i], addr+i, line, expected) 131 | return (size, data[size:]) 132 | 133 | def exec_write(cmd): 134 | # w [address] [data] 135 | if len(cmd) < 3: 136 | print "w [address] [data]" 137 | return 138 | addr = int(cmd[1], 0) 139 | data = cmd[2] 140 | while data: 141 | size, data = exec_write_partial(addr, data) 142 | addr += size 143 | 144 | def exec_exec(cmd): 145 | # x [address] 146 | addr = int(cmd[1], 0) 147 | print send_custom('x', addr) 148 | 149 | def exec_alloc(cmd): 150 | # a [size] 151 | size = int(cmd[1], 0) 152 | output = send_custom('a', size) 153 | if output == b'alloc 0': 154 | logger.error("OUT OF MEMORY") 155 | prefix = b'alloc 0x' 156 | assert output.startswith(prefix) 157 | print output 158 | return int(output[len(prefix):], 16) 159 | 160 | def exec_free(cmd): 161 | # f [address] 162 | addr = int(cmd[1], 0) 163 | print send_custom('f', addr) 164 | 165 | def exec_write_file(cmd): 166 | # wf [file] 167 | if len(cmd) < 2: 168 | print "wf [file]" 169 | return 170 | try: 171 | patch = read_patch(cmd[1]) 172 | except: 173 | logger.error("failed to assemble patch") 174 | return 175 | addr = exec_alloc(['a', str(len(patch)+16)]) 176 | print "allocated 0x%x bytes at 0x%x" % (len(patch)+16, addr) 177 | exec_write(['w', "0x%x" % addr, patch]) 178 | print "wrote to 0x%x, execute with x 0x%x" % (addr, addr) 179 | 180 | def exec_write_bin(cmd): 181 | # wb [file] 182 | if len(cmd) < 2: 183 | print "wb [file]" 184 | return 185 | with open(cmd[1], 'rb') as f: 186 | patch = f.read() 187 | 188 | addr = exec_alloc(['a', str(len(patch)+16)]) 189 | print "allocated 0x%x bytes at 0x%x" % (len(patch)+16, addr) 190 | exec_write(['w', "0x%x" % addr, patch]) 191 | print "wrote to 0x%x, execute with x 0x%x" % (addr, addr) 192 | def exec_setcmd(cmd): 193 | #sc [addr] 194 | if len(cmd) < 2: 195 | print "sc [addr]" 196 | return 197 | addr = int(cmd[1], 0) 198 | exec_write(['w', "0x000BAB98", struct.pack(' ") 229 | cmd = cmd.split(' ') 230 | if cmd[0] == 'r': 231 | exec_read(cmd) 232 | elif cmd[0] == 'w': 233 | exec_write(cmd) 234 | elif cmd[0] == 'x': 235 | exec_exec(cmd) 236 | elif cmd[0] == 'a': 237 | exec_alloc(cmd) 238 | elif cmd[0] == 'f': 239 | exec_free(cmd) 240 | elif cmd[0] == 'wf': 241 | exec_write_file(cmd) 242 | elif cmd[0] == 'wb': 243 | exec_write_bin(cmd) 244 | elif cmd[0] == 'sc': 245 | exec_setcmd(cmd) 246 | elif cmd[0] == 'z': 247 | exec_plain(cmd) 248 | elif cmd[0] =='exit': 249 | break 250 | else: 251 | print("r/w/x/a/f/wf") 252 | 253 | if client: 254 | client.close() 255 | --------------------------------------------------------------------------------